Mostly Unpublished Cheats ;)

red    marked cheats are unique, not listed on any site (tell me if not).
brown marked cheats from various other sources like gamefaqs.com etc, checked and fixed if necessary.
gray   marked disabled or missed cheats buried inside game ROM.


  100 Man $ Kid - Maboroshi no Teiou Hen, Casino Kid (U)
  1943 - The Battle of Midway, 1943
  3-D Battles of World Runner, The
  8 Eyes
  AV - Mahjongg
  AV Jiu Ji Ma Jiang 2
  AV Poker, Mari - Ayami - Luka no AV Poker, Peek-A-Boo Poker, Poker (As)
  AV Pretty Girl Fighting
  AV Soccer, Ultimate League Soccer
  Aa Yakyuu Jinsei Icchokusen
  Abadox
  Abarenbou Tengu, Zombie Nation
  Aces - Iron Eagle 3, Ultimate Air Combat
  Action in New York, Final Mission, SCAT - Special Cybernetic Attack Team
  Addams Family, The (U)
  Addams Family, The - Pugsley's Scavenger Hunt
  Advanced Dungeons & Dragons - Dragon Strike
  Adventures of Dino Riki, The, Shin Jinrui - The New Type
  Adventures of Lolo (J), Adventures of Lolo 2 (U)
  Adventures of Lolo (U)
  Adventures of Lolo 2 (J), Adventures of Lolo 3 (U)
  Adventures of Rocky and Bullwinkle and Friends, The
  Adventures of Tom Sawyer, Tom Sawyer no Bouken
  After Burner, After Burner II
  Airwolf (J)
  Akumajou Densetsu, Castlevania III - Dracula's Curse
  Akumajou Special - Boku Dracula-kun
  Aladdin (E) [!]
  Aladdin (E) [p1], Aladdin (Unl)
  Alien 3
  Alien Syndrome
  All Night Nippon Super Mario Bros., Super Mario Bros. (JU), VS Super Mario Bros.
  Alpha Mission, ASO - Armored Scrum Object
  Arabian Dream Sherazaado, Magic of Scheherazade, The
  Arkanoid (J)
  Arkanoid 2
  Asterix
  Astyanax, Lord of King, The
  Atari RBI Baseball, Pro Yakyuu - Family Stadium (J), Pro Yakyuu - Family Stadium '87, R.B.I. Baseball (U)
  Attack of the Killer Tomatoes
  Babel no Tou
  Back to the Future (U)
  Back to the Future II & III
  Bad Dudes (U), Bad Dudes vs Dragon Ninja, Dragon Ninja
  Bad News Baseball, Gekitou Stadium!!
  Banana Prince, Bananan Ouji no Daibouken
  Baseball Simulator 1.000, Choujin - Ultra Baseball
  Baseball Star - Mezase Sankanou!!, Baseball Stars (U)
  Batman - Return of the Joker, Dynamite Batman
  Batman Returns, Batman 3
  Batsu & Terii
  Battle Baseball
  Battle City, Tank 1990
  Battle Formula, Super Spy Hunter
  Battle Stadium - Senbatsu Pro Yakyuu
  Battle Storm
  Battleship
  Battletoads & Double Dragon - The Ultimate Team
  Battletoads (U)
  Bee 52
  Best Play Pro Yakyuu '90
  Best Play Pro Yakyuu (J)
  Best Play Pro Yakyuu II
  Best Play Pro Yakyuu Special
  Big Nose Freaks Out
  Big Nose the Caveman
  Bikkuri Nekketsu Shin Kiroku! - Harukanaru Kin Medal, Crash 'n the Boys - Street Challenge
  Binary Land
  Bio Miracle Bokutte Upa
  Blue Marlin, The
  Blue Shadow, Kage, Shadow of the Ninja
  Blues Brothers, The
  Bo Jackson Baseball
  Bomber King, Robo Warrior
  Bomberman II, Dynablaster
  Bonk's Adventure, FC Genjin - Freakthoropus Computerus
  Booby Kids
  Bram Stoker's Dracula
  Bubble Bath Babes, Mermaids of Atlantis, Soap Panic
  Bubble Bobble 2
  Bucky O'Hare
  Buggy Popper, Bump'n'Jump
  Bugs Bunny Birthday Bash, Bugs Bunny Birthday Blowout, The, Happy Birthday Bugs
  Bugs Bunny Crazy Castle, The, Bugs Bunny Fun House
  Burai Fighter
  Captain Ed
  Captain Saver, Power Blade 2
  Captain Skyhawk
  Captain Tsubasa (J), Tecmo Cup - Soccer Game
  Captain Tsubasa Vol. II - Super Striker
  Castelian, Kyoro Chan Land
  Castlevania II - Simon's Quest
  Cat Ninden Teyandee
  Challenger
  Championship Pool
  Chaos World
  Chiki Chiki Machine Mou Race, Wacky Races
  Chiller
  Chitei Senkuu Vazorudaa, Wurm
  Chou Hen, Galactic Crusader, Papillion
  Choujin Sentai - Jetman
  Chu Da D
  City Adventure Touch - Mystery of Triangle
  Clash at Demonhead, Dengeki - Big Bang!
  Clu Clu Land
  Commando, Senjou no Ookami
  Conquest of the Crystal Palace, Matendouji
  Contra (U), Gryzor, Probotector (E)
  Contra Force
  Cool World
  Cosmic Epsilon
  Crackout
  Crisis Force
  Crystalis, God Slayer - Haruka Tenkuu no Sonata
  Dai Meiro - Meikyuu no Tatsujin
  Daikaijuu Deburas
  Daiku no Gen San 2 - Akage no Dan no Gyakushuu
  Dalton McGuinty's Kids' Computer Game, M.C. Kids
  Dash Galaxy in the Alien Asylum
  Datsugoku, POW - Prisoners of War
  Deadly Towers, Mashou
  Demon Sword, Fudou Myouou Den
  Destination Earthstar
  Dig Dug II
  Dirty Harry
  Dizzy The Adventurer
  Doki! Doki! Yuuenchi, Trolls in Crazyland, The
  Don Doko Don 2
  Donald Land
  Donkey Kong Country 4
  Doraemon (J)
  Double Dragon 4, Target Renegade
  Double Dragon II - The Revenge
  Double Dragon III - The Rosetta Stone, Double Dragon III - The Sacred Stones
  Downtown - Nekketsu Koushin Kyoku - Soreyuke Daiundoukai
  Dr. Mario
  Dragon Fighter
  Dragon Spirit - Aratanaru Densetsu, Dragon Spirit - The New Legend
  Dragon's Lair
  Dragon, The
  Drop Zone
  Dungeon & Magic - Swords of Element
  Dynowarz - Destruction of Spondylus
  Earth Worm Jim 2
  Earth Worm Jim 3
  Egypt
  Esper Dream 2 - Aratanaru Tatakai
  Exodus
  F-1 Sensation, Formula 1 Sensation
  F-117A Stealth Fighter
  F-15 Strike Eagle
  F1 Circus
  Family Computer - Othello, Othello (U)
  Family Pinball, Rock 'n' Ball
  Famista '89 - Kaimaku Han!!
  Famista '90
  Famista '91
  Famista '92
  Famista '93
  Famista '94
  Fantastic Adventures of Dizzy, The
  Fantasy Zone (J)
  Faria - A World of Mystery and Danger!, Faria (J)
  Fighting Golf, Lee Trevino's Fighting Golf
  Fighting Road
  Final Fantasy (J), Yin He Shi Dai
  Final Fight 3
  Fire 'n Ice, Solomon no Kagi 2 - Coolmin Tou Kyuushutsu Sakusen, Solomon's Key 2
  Fire Emblem Gaiden
  Fire Hawk
  Fist of the North Star, Hokuto no Ken 2 - Seikimatsu Kyuuseishu Densetsu
  Flintstones, The - The Rescue of Dino & Hoppy
  Flintstones, The - The Surprise at Dinosaur Peak!
  Flipull - An Exciting Cube Game
  Flying Warriors, Hiryuu no Ken III - 5 Nin no Ryuu Senshi
  Freedom Force
  Fuzzical Fighter
  G.I. Joe (U)
  Galaxy 5000
  Galg
  GameGenie
  Ganbare Goemon! - Karakuri Douchuu
  Ganbare Pennant Race!
  Ganso Saiyuuki - Super Monkey Daibouken
  Gauntlet (U)
  Gekitou Pro Wrestling!! - Toukon Densetsu, Tecmo World Wrestling
  Getsufuu Maden
  Ghosts'n Goblins, Makai-Mura
  Ghoul School
  Gimmick!, Mr. Gimmick
  Goal! 2, Goal! Two, Goal!!
  Godzilla - Monster of Monsters!, Godzilla (J)
  Golgo 13 - Dai 1 Shou - Kamigami no Tasogare, Golgo 13 - Top Secret Episode
  Golgo 13 - The Riddle of Icarus, Mafat Conspiracy - Golgo 13
  Goonies II, The - Fratelli Saigo no Chousen, Goonies II, The (U)
  Gradius (J)
  Gradius II
  Grand Master
  Great Battle Cyber
  Great Tank, Iron Tank
  Guerilla War, Guevara
  Guardian Legend, The, Guardic Gaiden
  Gun Nac
  Gun Sight, Laser Invasion
  Gun-Dec, Vice - Project Doom
  Gun.Smoke
  Gyruss
  Heavy Barrel
  Heavy Shreddin'
  Hi no Tori - Houou Hen - Gaou no Bouken
  Hit the Ice
  Hokuto no Ken (J)
  Home Run Nighter '90 - The Pennant League
  Hook
  Hudson Hawk
  Hudson's Adventure Island II, Takahashi Meijin no Bouken Shima II
  Hudson's Adventure Island III, Takahashi Meijin no Bouken Shima III
  Hunt for Red October, The
  Ikari (J), Ikari Warriors
  Ikari II - Dogosoken, Ikari Warriors II - Victory Road
  Ikari III - The Rescue, Ikari III (J)
  Image Fight
  Immortal, The
  Incredible Crash Dummies, The
  Indiana Jones and the Last Crusade (E), Indiana Jones and the Last Crusade (U) (UBI Soft)
  Infiltrator
  International Cricket
  Ironsword - Wizards & Warriors II
  Isolated Warrior, Max Warrior - Wakusei Kaigenrei
  Itadaki Street - Watashi no Mise ni Yottette
  Jackie Chan (J), Jackie Chan's Action Kung Fu
  James Bond Jr
  Jarinko Chie - Bakudan Musume no Shiawase Sagashi
  Jetsons, The - Cogswell's Caper!
  Jigoku Gokuraku Maru, Kabuki - Quantum Fighter
  Journey to Silius, Raf World
  Jovial Race
  Jungle Book, The
  Jurassic Park
  Juuryoku Soukou Metal Storm, Metal Storm
  Kage no Densetsu, Legend of Kage, The
  Kagerou Densetsu
  Kaiketsu Yanchamaru (J), Kid Niki - Radical Ninja
  Kaiketsu Yanchamaru 2 - Karakuri Land
  Kame no Ongaeshi - Urashima Densetsu, Xexyz
  Karate Champ
  Karnov
  Kick Master
  Kickle Cubicle, Meikyuu Shima
  Kid Klown, Mickey Mouse 3 - Yume Fuusen
  King Kong 2 - Ikari no Megaton Punch
  King of Fighters 96
  Klash Ball
  Knight Rider
  Koushien
  Krazy Kreatures
  Kujaku Ou 2
  Kung-Fu Heroes, Super Chinese (J)
  Kunio Kun no Nekketsu Soccer League
  Kyonshiizu 2
  Kyuukyoku Harikiri Koushien
  Kyuukyoku Harikiri Stadium 3
  Kyuukyoku Tiger, Twin Cobra
  Last Ninja, The
  Legend of Prince Valiant, The
  Legend of the Ghost Lion, White Lion Densetsu
  Legend of Zelda, The, Zelda no Densetsu 1 - The Hyrule Fantasy
  Lethal Weapon
  Lethal Weapon (Tw)
  Lifeforce, Salamander
  Linus Spacehead's Cosmic Crusade
  Lion King, The (E)
  Little Mermaid - Ningyo Hime, Little Mermaid, The
  Little Nemo - The Dream Master, Nemo - Pajama Hero
  Little Ninja Brothers, Super Chinese 2 - Dragon Kid
  Little Samson, Seirei Densetsu Lickle
  Lode Runner
  Lost Word of Jenny
  Lupin Sansei - Pandora no Isan
  Mad Max
  Magic Candle, The
  Magic Darts
  Magic John (J), Totally Rad
  Magician
  Majaventure - Mahjong Senki
  Major League Baseball
  Majou Densetsu 2 - Daimashikyou Galious
  Maniac Mansion (J)
  Mappy Kids
  Mappy-Land
  Master Fighter 2, Street Fighter II (YOKO)
  Mega Man 2, Rockman 2 - Dr. Wily no Nazo
  Mega Man 3, Rockman 3 - Dr. Wily no Saigo!
  Meiji Ishin
  Meimon! Takonishi Ouendan - Kouha 6 Nin Shuu
  Meitantei Holmes - Kiri no London Satsujin Jiken
  Menace Beach
  Mendel Palace, Quinty
  Metal Fighter
  MiG 29 - Soviet Fighter
  Mickey Mania, China Rabbit Baby
  Mickey Mouse (J), Mickey Mousecapade
  Micro Machines
  Mike Tyson's Punch-Out!!, Punch-Out!!
  Mission Impossible
  Mitsume ga Tooru
  Momotarou Densetsu (J)
  Momotarou Dentetsu
  Monster In My Pocket
  Moon Crystal
  Mortal Kombat 3 - Special 56 Peoples
  Mouryou Senki Madara
  Ms. Pac-Man (U) (Namco)
  Ms. Pac-Man (U) (Tengen)
  Musashi no Bouken
  Musashi no Ken - Tadaima Shugyou Chuu
  Mutant Virus, The
  NARC
  Nangoku Shirei!! - Spy Vs Spy
  Nantettatte!! Baseball
  Napoleon Senki
  Navy Blue
  Nekketsu Kakutou Densetsu
  Nekketsu Koukou Dodgeball Bu - Soccer Hen, Nintendo World Cup
  New Ghostbusters II
  New York Nyankies, Rockin' Kats
  Ninja Cop Saizou, Wrath of the Black Manta
  Ninja Gaiden (U), Ninja Ryukenden (J), Shadow Warriors
  Ninja Gaiden 2 - The Dark Sword of Chaos, Ninja Ryukenden II - Ankoku no Jashin Ken, Shadow Warriors Episode II - The Dark Sword of Chaos
  Ninja Gaiden 3 - The Ancient Ship of Doom, Ninja Ryukenden III - Yomi no Hakobune
  Ninja Kun - Ashura no Shou
  North & South
  Nuts & Milk
  Operation Wolf
  Orb 3D
  Over Horizon
  P'radikus Conflict, The
  Pachi Com
  Palamedes (U)
  Palamedes 2 - Star Twinkles
  Panda Prince
  Paperboy (U)
  Parallel World
  Parasol Stars - The Story of Bubble Bobble 3
  Paris-Dakar Rally Special
  Parodius (E), Parodius da!
  Pictionary
  Platoon
  Pocahontas (As)
  Pocahontas 2
  Power Blade (U)
  Power Blazer
  Power Punch 2
  Power Rangers 3
  Power Rangers 4
  Predator
  President no Sentaku
  Prince of Persia
  Pro Sport Hockey, USA Ice Hockey in FC
  Pro Yakyuu - Family Stadium '88
  Probotector II - Return of the Evil Forces, Super C, Super Contra (J)
  Punisher, The
  Pyokotan no Dai Meiro
  Quarter Back Scramble
  Quattro Adventure
  Quattro Arcade
  Quattro Sports, Super Sports Challenge
  R.C. Pro-Am 2
  Racer Mini Yonku - Japan Cup
  Rad Racer 2
  Raid on Bungeling Bay
  Rainbow Islands - The Story of Bubble Bobble 2
  Rampart (J)
  Robin Hood - Prince of Thieves
  Robocop (U)
  Rocket Ranger
  Rod Land
  Roger Clemens MVP Baseball
  Rolling Thunder
  Route-16 Turbo
  Rush'n Attack
  SD Hero Soukessen - Taose! Aku no Gundan
  Saiyuuki World (J)
  Saiyuuki World 2 - Tenjoukai no Majin, Whomp'Em
  Section Z
  Seicross
  Seikima II - Akuma no Gyakushuu
  Shatterhand, Tokkyuu Shirei - Solbrain
  Shin Samurai Spirits 2 - Haoumaru Jigoku Hen
  Shinobi
  Side Pocket
  Silver Surfer
  Simpsons, The - Bart Vs. the Space Mutants
  Skate or Die 2 - The Search for Double Trouble
  Sky Destroyer
  Sky Kid, Super Sky Kid
  Smash T.V.
  Solomon no Kagi (J), Solomon's Key (U)
  Solstice
  Somari, Sonic 3D Blast 5, Sonic 3D Blast 6
  Space Harrier
  Space Hunter
  Splatter House - Wanpaku Graffiti
  Spot
  Spy Hunter
  Square no Tom Sawyer
  Star Luster
  Star Soldier
  Star Trek - The Next Generation
  Star Wars - The Empire Strikes Back
  Strider
  Stunt Kids
  Summer Carnival '92 - Recca
  Sunman
  Super Chinese 3
  Super Contra 3
  Super Donkey Kong 2
  Super Donkey Kong [p1]
  Super Mario World
  Super Turrican
  Super Xevious - Gump no Nazo
  Sword Master
  T& C 2 - Thrilla's Surfari
  Tag Team Pro-Wrestling, Tag Team Wrestling
  Taito Chase H.Q.
  Taiyou no Shinden - Asteka 2, Tombs and Treasure
  Takahashi Meijin no Bouken Shima IV
  Takeshi no Chousenjou
  Tatakai no Banka, Trojan
  Tecmo Bowl
  Tecmo Super Bowl
  Tecmo World Cup Soccer
  Teenage Mutant Hero Turtles II - The Arcade Game (E), Teenage Mutant Ninja Turtles (J), Teenage Mutant Ninja Turtles II - The Arcade Game (U)
  Teenage Mutant Ninja Turtles - Tournament Fighters
  Teenage Mutant Ninja Turtles II - The Arcade Game (J), Teenage Mutant Ninja Turtles III - The Manhattan Project (U)
  Tekken 2
  Tetrastar - The Fighter
  Tetris (Unl)
  Thunderbirds
  Thundercade
  Tiger-Heli
  Time Diver Eon Man
  Tiny Toon Adventures (U)
  Tiny Toon Adventures 2 - Montana Land e Youkoso, Tiny Toon Adventures 2 - Trouble in Wackyland
  Tiny Toon Adventures 6
  Titan
  Tokoro San no Mamoru mo Semeru mo
  Tom & Jerry and Tuffy
  Top Gun - Dual Fighters, Top Gun - The Second Mission
  Top Rider
  Toukon Club
  Tower of Druaga, The
  Toxic Crusaders
  Treasure Master
  Tsuri Kichi Sanpei - Blue Marlin Hen
  TwinBee 3 - Poko Poko Dai Maou
  Uchuu Keibitai SDF
  Ultimate Stuntman
  Vegas Connection - Casino Kara Ai wo Komete
  Vegas Dream, Viva! Las Vegas
  Wagyan Land (J)
  Wario no Mori, Wario's Woods
  Who Framed Roger Rabbit
  World Boxing
  Xevious
  Xiao Ma Li
  Yo! Noid, Kamen no Ninja - Hanamaru
  Yoshi no Cookie, Yoshi's Cookie
  Youkai Douchuuki
  Youkai Kurabu
  Yume Penguin Monogatari
  Zanac
  Zelda II - The Adventure of Link
  Zen Intergalactic Ninja
  Zoids Mokushiroku
  Zombie Hunter

Cheats summary:

generic cheats-224
unique cheats-331
buried secrets-123
fixed generic cheats-99
unverified cheats-0
games with no known cheats-1092

100 Man $ Kid - Maboroshi no Teiou Hen, Casino Kid (U)

US version:

(UNI) Secret passwords:
Instead "_" symbol you should use "FORWARD" option at password entering screen. Secret passwords need to be enabled before the game. When you entering level and splash screen gives an advice to you, hold Start button before pressing A button to skip splash screen
i_am_a_richman-Gives you $100000.
i_wanna_see_the_king-Final poker battle with the King (Elvis is alive! ;)). If you win you'll see ending sequence.
i_wanna_go_bankrupt-Takes you to "game over" screen (strange cheat).
debug_monitor_switch_on-Debugging functions. For enabling debugging you should in addition to A + Start on first controller hold Left + A on second controller. To switch to in game debugging monitor hold Left + A on second controller then press Start on first controller.

1943 - The Battle of Midway, 1943

(UNI) Password generator:
Game Level:
Offensive Power:
Defensive Power:
Energy Level:
Special Weapon:
SW Time Limit:
Pts available:
Alt Password:
Password:

3-D Battles of World Runner, The

(GEN) Continue:
After your game has ended, push Up + A or push Down + A.

(GEN) Hard Mode:
Press B, B, B, B then hold Up + Left and press Start to begin game play.

8 Eyes

US version:

(GEN) Secret passwords:
TAXANTAXAN-Special stage
FINALSTAGE-Final stage

(UNI) Password generator:
Random:
Quest:
Cleared:Arabia
Italia
India
Egypt
Germany
Spain
Africa
Hints:Black is on the far right
White is next to Yellow
Black is next to Red
White, Orange, and purple are all separated
Between Black and White, there is no Yellow
Between Green and Purple are two jewels
Purple is next to Red
Level:
Password:

Japan version:

(UNI) Password Generator:
Random:
Cleared:Arabia
Italia
India
Egypt
Germany
Spain
Africa
Hints:Between Black and White are five jewels
Between Black and White, there is no Yellow
Near Red there is no Orange, Yellow is on the far Left
Near White and Yellow there is no Purple
White is next to Yellow, Black is next to Red
Between Green and Purple are two jewels
Blue is next to Purple, Black is on the far Right
Level:
Password:

AV - Mahjongg

(UNI) Replay Mode:
Press Left, Left, Right, Right, B, A at the title screen.

(UNI) Easy play:
Press Up, Up, Down, Down, B, A, Start at the title screen. When you will be starting any Mahjong game, you'll be able to choose any option before game.

AV Jiu Ji Ma Jiang 2

(UNI) Replay mode:
At title screen after "START" message appears press Up, Up, Left, Left, Down, Down, Right, Right.

(UNI) Extra 900 game points:
At title screen after "START" message appears press Up, Up, Left, Left, Down, Down, Right then press Up + Right. A sound will confirm correct code entry.

AV Poker, Mari - Ayami - Luka no AV Poker, Peek-A-Boo Poker, Poker (As)

(GEN) Ending sequence:
Press Select, Start, A, Up, B, Down at the title screen. The first ending screen will appear after a brief pause. Press A, A, Up, B, Down to cycle through the screens.

AV Pretty Girl Fighting

(UNI) Replay mode:
Press Up, Up, Left, Right, Down, Down, Up, Down at the title screen. You will see all nude pictures.

AV Soccer, Ultimate League Soccer

(UNI) Ending sequence:
Press Select, B, Up, A, Down, B, Left, A, Right at the title screen, after pressing start, before team setup appears.

Aa Yakyuu Jinsei Icchokusen

(UNI) Secret words:
Enter as name:
さうんと-Sound test

Abadox

(UNI) Super weapon:
Press Up, Down, Right, Right, Up, Left, Right, Down, Left, Up, Start after the "PRESS START" message appears. During game play, press Start, Start to get a super weapon.

(GEN) Invincibility and Super weapon:
On the title screen press A, A, Up, B, B, Down, A, B and start and you're invincible. To get super weapons, press Start, Start during game play.

(GEN) Stage select:
On the credits screen, press Left, Up, Right, Down, Up, Right, Left, Down and then press the following buttons:
Up-Stage 2
Left-Stage 3
Down-Stage 4
Right-Stage 5
Select-Stage 6
B-Stage 7

(GEN) Ending sequence:
Press A, A, Up, B, B, Down, A, B, B, Start at when the phrase "PRESS START" appears.

Abarenbou Tengu, Zombie Nation

(UNI) CRC test:
Hold Up + Left + A + B on second controller and press Reset.

(GEN) Sound test:
Hold Up + A + B and press Reset.

(GEN) Restore energy:
Pause game play and press Up, Up, Down, Down, Left, Right, Left, Right, B, A, Start. Note: This may only be done once per game.

(BURIED) Special Round Select:
Entry point: 0x9DB1, RAM variable depending: 0xD1, 0xF0A1 writes to 0xD1 proc, 0xC9=4, 0xCA=4. 19 times press Reset, 0xD1 should be 0xFF.
00019E80: 64 20 01 0C 0F 05 00 62 6F 73 73 20 01 0B 14 08 D......BOSS.....
00019E90: 00 65 64 69 74 20 6D 6F 64 65 0C 19 05 00 65 6E .EDIT.MODE....EN
00019EA0: 64 69 6E 67 AD 8D 02 C9 02 B0 33 0A 6D 8D 02 AA DING.m......Mm..

Aces - Iron Eagle 3, Ultimate Air Combat

(UNI) Secret passwords:
S3CR3T-Ultimate cheat screen.

Action in New York, Final Mission, SCAT - Special Cybernetic Attack Team

Japan version:

(UNI) Level select and more:
At title screen hold A + B on second controller and then press on first controller:
A + Start-Level 2
B + Start-Level 3
Right + Start-Level 4
Left + Start-Level 5
Up + Start-Ending sequence
Select + Start-Extra 10 lives

US version:

(GEN) Level select:
At title screen hold A + B on second controller and then press on first controller:
A + Start-Level 2
B + Start-Level 3
Right + Start-Level 4

(UNI) Extra 12 lives:
At title screen hold Up + A + B on second controller and then press Start on first controller.

European version:

(UNI) Level select and more:
At title screen press A, B, Right, Left, A, B, Up, Down, Select on first controller to enable cheats. Then press on first controller:
A + Start-Level 2
B + Start-Level 3
Right + Start-Level 4
Left + Start-Level 5
Up + Start-Extra 12 lives

Addams Family, The (U)

(UNI) Infinite lives:
Press A, B, B, A, Left, Right, Left, Right at the title screen, "c" letter appears in upper left screen corner.
Thanks Kitsune for corrections.

Addams Family, The - Pugsley's Scavenger Hunt

(UNI) Password generator:
Lives:
Random:
Hearts:
Saved:Wednesday
Granny
Uncle Fester
Gomez
Password:

Advanced Dungeons & Dragons - Dragon Strike

(UNI) Sound test:
At first title screen press Up, Down, Left, Right.

(UNI) Japan version:
At copyrights screen press Up, Right, Down, Left, Up, Up, Down, Down, Up, Down, Left, Right. Game will reset. From this point all messages are in Japanese.

Adventures of Dino Riki, The, Shin Jinrui - The New Type

(FIX) Continue:
At the game over screen hold any direction button then press Start.

Adventures of Lolo (J), Adventures of Lolo 2 (U)

(UNI) Password generator:
Level:
Password:

(FIX) Secret passwords:
CSTM-Customize control settings
PROA-Pro level A
PROB-Pro level B
PROC-Pro level C
PROD-Pro level D

Adventures of Lolo (U)

(UNI) Password generator:
Level:
Password:

Adventures of Lolo 2 (J), Adventures of Lolo 3 (U)

Japan version:

(GEN) Secret passwords:
♥SNAKEY+MONSTER♥-Shows Snakey monster
♥LEAPER+MONSTER♥-Shows Leaper monster
♥SKALWG+MONSTER♥-Shows Skalwg monster
♥ROCKY++MONSTER♥-Shows Rocky monster
♥MEDUSA+MONSTER♥-Shows Medusa monster
♥GOL+GOLMONSTER♥-Shows Gal monster
♥ALMARK+MONSTER♥-Shows Almark monster
DONMEDUSAMONSTER-Shows Done Medusa monster
♥CAPOXX+MONSTER♥-Shows Capoxx monster
__00LOLO2BGMTEST-BGM test, type instead __ decimal number between 00 and 23.
__00LOLO2FGMTEST-FGM test, type instead __ decimal number between 00 and 48.

US version:

(GEN) Secret passwords:
♥SN#K☻Y+M!NST☻R♥-Shows Snakey monster
♥L☻#P☻R+M!NST☻R♥-Shows Leaper monster
♥SK#LWG+M!NST☻R♥-Shows Skalwg monster
♥R!CKY++M!NST☻R♥-Shows Rocky monster
♥M☻D*S#+M!NST☻R♥-Shows Medusa monster
♥G!L+G!LM!NST☻R♥-Shows Gal monster
♥#LM#RK+M!NST☻R♥-Shows Almark monster
D!NM☻D*S#M!NST☻R-Shows Done Medusa monster
♥C#P!XX+M!NST☻R♥-Shows Capoxx monster
__00L!L!3BGMT☻ST-BGM test, type instead __ decimal number between 00 and 23.
__00L!L!3FGMT☻ST-FGM test, type instead __ decimal number between 00 and 48.

Adventures of Rocky and Bullwinkle and Friends, The

(GEN) Level skip:
Press B, A, A, Start, A, B, B, A on second controller as soon as game play begins. Then press B on second controller during game play to jump to the next level. Your character can not jump after this code has been enabled.

Adventures of Tom Sawyer, Tom Sawyer no Bouken

(BURIED) GameGenie:
This cheat combination was disabled in final release, but probably was planned to be enabled. There is should be combination Up, Down, Down, Right, Left, Right, Right, Left, Up, Down, Down, Right, but on development stage was shorted to first two buttons. Because some key press check, pressed buttons not wait too long, key check code looks kinda fixed, so it need more fixes to work properly, but rapid pressing of buttons is work fine for me.
IANXLOIZ (Japan version)
IEOXAPLL (US version)
-Enable Cheat Menu cheat.
To enter to the Cheat Menu press rapidly Up then Down.

After Burner, After Burner II

US version:

(UNI) Sound Test:
Hold B button before title screen appears (at console power up or after game over screen).

(GEN) Reverse mode:
Hold A + B on second controller and press Start on first controller..

(GEN) Continue:
When your game is over and you're at the blue After Burner screen, press Left, Left, Left, B, B, B, A, A, A, Start. You will continue on the level you just got a game over on.

(UNI) Unknown:
Press Left, Left, Left, B, B, B, A, A, A, A, A, A, A, B, Up, Up, Down, Down, Down, Down, Down in title screen. You'll hear a sound.

Japan version:

(UNI) Sound Test:
At the title screen hold A then start the game.

(UNI) Reverse Mode:
Hold A + B on second controller and start the game.

(UNI) Continue:
When your game is over and you're at the blue After Burner screen, press A, A, A, A, B, Up, Up, Down, Down, Down, Down, Down, Down. You will continue on the level you just got a game over on.

(UNI) Unknown:
At the title screen press B, B, B, B, B, B, B, A, A, A, A, A, A, A, Up, Up, Up, Up, Up, Up, Up. You'll hear the sound. First part of this cheat cause unlimited continue, the same as After Burner.

Airwolf (J)

(GEN) Invincibility:
Start a new game. Hold A on second controller when the helicopter drop-off point appears, then press Up, Left, Down, Right, Down, Left, Up, Right on first controller. The Airwolf will flash to confirm correct code entry.

(GEN) Stage select:
Press Up, Down, Left, Right, A, B, A, B on second controller, then press A + Start on first controller at the title screen.

(GEN) Music test:
Press Up, Down, Left, Right, A, B, A, B on second controller, then press A + B + Start on first controller at the title screen.

Akumajou Densetsu, Castlevania III - Dracula's Curse

(FIX) Sound test:
At title screen hold A or B or both buttons then press Start.

(GEN) Secret words:
Enter as a name:
HELP ME-Ten lives
AKAMA-Expert mode
OKUDA-Start with Alucard
URATA-Start with Sypha
FUJIMOTO-Start with Grant

Akumajou Special - Boku Dracula-kun

(GEN) Easter egg:
At the title screen, input the Konami code Up, Up, Down, Down, Left, Right, Left, Right, B, A. If you entered the code correctly, you'll hear a sound go off. Press Start and you'll get a black screen with the text "zannen deshita. nanimonai yo-n!", which means "too bad. there's nothing here!".

(BURIED) Copyrights check:
As most games by Konami made after 1991 year game contain simple copyrights check, testings some parts of CHR and some bytes of PRG data. Then enables "no enemies" mode from second level.

Aladdin (E) [!]

(GEN) Stage Skip:
Pause the game and press A, B, B, A, A, B, B, A then any button to skip directly to the next stage.

Aladdin (E) [p1], Aladdin (Unl)

(BURIED) GameGenie:
PAOEILAA-Enable Alternate game title "Popey - Travels in Persia"

Alien 3

(GEN) Level skip:
Pause the game and press Left, Right, Up, Down, Left, Right, A, B, A, B to advance to the next stage.

Alien Syndrome

(GEN) Level select:
Press Down + Start on first controller and Right on second controller simultaneously.

(GEN) Borrowed life:
Start a two player game. Press A + B after running out of lives to borrow one life from the other player.

All Night Nippon Super Mario Bros., Super Mario Bros. (JU), VS Super Mario Bros.

(GEN) Continue:
After game over hold A button on the title screen then press Start to start from previously played world, but not sub world.

Alpha Mission, ASO - Armored Scrum Object

(UNI) Continue:
At game over screen quickly on second controller press A, B, Up, Down, B, A, Right, Left.

Arabian Dream Sherazaado, Magic of Scheherazade, The

(GEN) Secret passwords:
SOUND-Sound test
END-Ending sequence
1W-Level 1
2W-Level 2
3W-Level 3
4W-Level 4
5W-Level 5

Arkanoid (J)

(GEN) Continue:
To continue on the same level after you run out of lives, hold down on the title screen A + B while pressing Select 5 or greater times. Release A + B and press Start.

(FIX) Skip Level:
Any time you want, during the game press and hold A + Start to advance to another level.

Arkanoid 2

(UNI) Continue:
Press Down, B, Right, Left, A, A, Up, B at the title screen.

(UNI) +50% Ball speed:
Press Right, A, Down, B, Left, A, Up, B at the title screen.

Asterix

(UNI) Cheat menu:
Start the game and press Start to pause it. Then enter following code Up, Up, Up, Up, Up, Up, Up, Up, Down, Down, Down, Down, Left, Left, A, B, Right, Right, Right, Right, Right, Right, Right, Right, Left, Left, Left, Left, Up, Up, B, A. A sound will confirm correct code entry, then press Start and game will return to title screen with extra "cheat" menu item.

(UNI) Invincibility:
Do the same operations as for cheat menu enabling, but before pressing Start to return to main menu, hold Up + Right + A + B buttons. Start new game with any cheats as you wish and press Start to pause game again. Then enter the same code as for enabling cheat menu. A sound will confirm correct code entry. Press Start to unpause the game. From this point you will be fully invulnerable.

Astyanax, Lord of King, The

(GEN) Stage select:
Press Up, Down, Left, Right, B, B, B, B, Start at the title screen.

(GEN) Invincibility:
Press Up, Up, Up, Up, Down, Left, Right, Up, Start at the title screen.

(GEN) Demo select:
Press Up, Up, Up, Down, Down, Down, A, B, Start at the title screen.

(GEN) Sound test:
Press Up, Down, Right, Left, Up, Down, Right, Left, Start at the title screen.

(GEN) Continue:
Press A, B, Select, Start at the game over screen.

Atari RBI Baseball, Pro Yakyuu - Family Stadium (J), Pro Yakyuu - Family Stadium '87, R.B.I. Baseball (U)

(GEN) Credits:
At title screen hold A + B then press Start.

Attack of the Killer Tomatoes

(UNI) Frame advance:
Press Start to pause game, then by pressing Select you can advance game frame by frame.

(UNI) Hidden Mesasge:
After you left last live and before tomatoes eyes animation and message "TRY AGAIN TOMATO FACE" will appear, hold Down + Left + A + B. Instead messame "ROB LOVES SANDY" appears. Rob Harris is a programmer of this game.

Babel no Tou

(GEN) Babel pro:
At title screen press Up, Up, Up, Down, Down, Down, Down, Down, Right, Right, Left.

Back to the Future (U)

(GEN) Disable music:
Pause game play, hold Up + A + B + Select, then resume game play.

Back to the Future II & III

(GEN) Start at 1875 (Part 3):
Hold B at the title screen then press Select to display the password menu. Enter "FLUXCAPACITORISTHEPOWER" as a password.

Bad Dudes (U), Bad Dudes vs Dragon Ninja, Dragon Ninja

(FIX) Extra 64 lives:
Press A, B, Down, Up, Down, Up on second controller at the title screen, then press Start on first controller.

(FIX) Extra punch power:
Enter "64 lives" cheat but don't press Start, now press Up, Up, Down, Down, Left, Right, Left, Right, A, B on second controller, then press Start on first controller. Your punch power two times increased.

(UNI) Patriotic cheat:
After beating game, when last credit's message "data east usa corp." rolls out, American flag at White House stops flutter. Then press Right, Left, Down, Up, A, A, B on second controller to make it flatter again. Press any button to stop in finally and A or Start to return to main menu.

Bad News Baseball, Gekitou Stadium!!

(GEN) Play as Girls team:
Hold Down + Left on first controller and Up on second controller, then press Reset. A heart will appear to confirm correct code entry.

Banana Prince, Bananan Ouji no Daibouken

(UNI) Debug menu:
Hold Left + A + Select + Start on first controller then press Reset.

(UNI) Password generator:
Level:
Unknown:
Weapon:
Password:
Note:0 - full banan
1 - half refined banan
2 - full refined banan
3 - banana peel

Baseball Simulator 1.000, Choujin - Ultra Baseball

Japan version:

(BURIED) GameGenie:
UUXYPOEU-Enable simple memory viewer/patcher. Probably should be called from another routine in game.
GGOVIYAE-Switch game to debug mode. Just reset the console. Probably should be called from anoter routine before reset.

US version:

(BURIED) GameGenie:
EKXYTOSL-Enable simple memory viewer/patcher. Probably should be called from another routine in game.
SGXTLNSU-Switch game to debug mode. Just reset the console. Probably should be called from anoter routine before reset.

Baseball Star - Mezase Sankanou!!, Baseball Stars (U)

US version:

(GEN) Super men's team:
Select the "Make Team" option from the main menu. Then press Down, Right, Left, Down, Down, Right, Up. The "Balanced Team" should now be selected, press A to enter team name edit screen and your team name will change to "WHEN ISNT IT?". Change the team name to "WHEN IT IS.".

(GEN) Super women's team:
Select the "Make Team" option from the main menu. Then press Down, Right, Left, Down, Down, Right, Up, Up, Down, Up, Down, Up. The "Veterans" team should now be selected, press A to enter team name edit screen and your team name will change to "WHAT IS A WREN?". Change the team name to "A BIRD.". The name will change again to "WHEN ISNT IT?". Change the name to "WHEN IT IS.".

Batman - Return of the Joker, Dynamite Batman

(GEN) Sound test:
Hold A + Start at the title screen.

Batman Returns, Batman 3

(UNI) Repeat ending sequence:
After ending sequence over and copyright message appears, press on second controller Left + A + B.

Batsu & Terii

(UNI) Level select:
At the title screen press Up, Down, Left, Right, Up, Down, Left, Right on second controller then select desired level (only worlds 1, 2, 5, 6 are available) by pressing B button on the second controller then start the game:
1 time-World 1, Level 2
2 times-World 1, Level 3
3 times-World 1, Level 4
4 times-World 2, Level 1
5 times-World 2, Level 2
6 times-World 2, Level 3
7 times-World 2, Level 4
16 times-World 5, Level 1
17 times-World 5, Level 2
18 times-World 5, Level 3
19 times-World 5, Level 4
20 times-World 6, Level 1
21 times-World 6, Level 2
22 times-World 6, Level 3
23 times-World 6, Level 4

(UNI) Extra 5 health:
At the title screen press Left, Left, Left, Left, Right, Right, Right, Right, Left, Left, Left, Left, Right, Right, Right, Right on second controller then start the game.

(UNI) Extra weapon:
At the title screen press A, Up, B, Up, A, Down, B, Down, A, Left, B, Left, A, Right, B, Right on second controller then start the game.

(UNI) Extra 99 hearts:
At the title screen press Up, Up, Up, Up, Right, Right, Right, Right, Left, Left, Left, Left, Down, Down, Down, Down on second controller then start the game.

(UNI) Extra 30 seconds:
At the title screen press A, Up, Left, Left, B, A, Right, Down, Right, Left, Right, Up, A, Down, A, Up on second controller then start the game.

(UNI) Extra 99 lives:
At the title screen press A, A, B, A, B, B, A, B, B, B, B, B, A + B, A + B, A + B, A + B on second controller then start the game.

Battle Baseball

(UNI) Sound test:
Hold Up + A + B + Start when "Banpresto" logo appears.

Battle City, Tank 1990

(UNI) Hidden message:
On title screen select "construction" menu item then press Start on first controller to enter this mode and again Start to return back to title screen. Repeat this 7 times. After that hold Down button on first controller and press A button on second controller 8 times. Finally, hold Right on first controller then press B button on second controller 14 times. Press Start on first controller. Message "THIS PROGRAM WAS WRITTEN BY OPEN-REACH WHO LOVES NORIKO" appears.

(BURIED) GameGenie:
IIOKYXAZ-Enable ingame debugging routine allow you to view memory data. Press B or Select to change address in Zero memory page. Pressing to A should been increase address to 0x10 but as side effect of this GG code it causes end of stage. Some hex letters was overwritten with other data in final release, so numbers with "a","b","c","d" letters cannot be displayed properly.
Info from Griever

Battle Formula, Super Spy Hunter

(FIX) Full equipment:
Press Up, Up, B, Right, Right, B, Down, B, Down, B, Left, Left, A on pause the game.

(GEN) Extra lives:
Hold A + B + Select and press Start at the title screens. Various numbers will appear on the screen. The number that remains on the screen indicates the number of lives available during the game. Note: Up to twelve lives may be selected in this manner.

(GEN) Pong mini-game:
Press A, A, A, A, A, A, A, A, Start at the continue screen. Defeat the CPU to continue game play with twenty extra lives.

Battle Stadium - Senbatsu Pro Yakyuu

(UNI) Debug mode:
Press Up, Up, Down, Down, Right, Left, Right, Left, A, B, Start on "oyasumi" page.

Battle Storm

(UNI) Ending sequence:
Press Up, Left, Down, Right, A, B at the title screen.

Battleship

(UNI) Secret passwords:
0914-Unlimited weapons
0528-Shows enemy grid by pressing Select

Battletoads & Double Dragon - The Ultimate Team

(FIX) Extra lives:
Hold Up + A + B and press Start at the player selection screen. Note: This code may also be re-activated at the game continue screen.

(UNI) Warp zone Extra 5 Lives:
Press B, A, Down, B, Up, Down on the player select screen. A sound will confirm correct code entry. Now press Start to enter Level selection menu up to 5-2 level and you'll start with extra 5 lives.

(GEN) Super Warp zone Extra 10 Lives:
Press Down, Up, Up, Down, A, B, B, A at the player selection screen. Game play will begin with ten lives after a level is selected.

Battletoads (U)

(GEN) Six lives:
Hold Down + A + B and press Start at the title screen or continue screen. An explosion will confirm correct code entry.

Bee 52

(GEN) Junior:
Press Right, A, B, A, B, Start on any splash screen before entering level. Message "cheat!" will appears.

(BURIED) GameGenie:
Absolutely all games by Codemasters have internal PRG ROM and CHR RAM testing routines. They called "Smiley tests". Tests are normally enabled, but for triggering it needs pressing all D-pad buttons. For performing PRG ROM test it needs to hold Up + Down + Left + Right + A + Select + Start. For performing CHR RAM test it needs to hold Up + Down + Left + Right + B + Select + Start. Without controller modification it is impossible. GameGenie codes allows you to do not use D-pad buttons for triggering cheat, only A + Select + Start and B + Select + Start. But it affects on ROM's CRC. I ran these tests normally by cheating with debugger, so I wrote normal CRC tests results in brackets.
EUXUUSNL-PRG CRC test (test ok)
ANUUNSYY-CHR RAM test

Best Play Pro Yakyuu '90

(UNI) Debug menu:
Choose first option at main game menu ("league data") then select 2nd team name and edit it to そのべ (press A at team name, then move cursor Up and again press A), return by pressing B button to main menu and choose middle upper menu item, move cursor down 13 times to point blue bar next to last position. Then return to main menu again and press Start at currently selected menu option. You'll be able to hear the music, view ending and other sequences and edit custom sounds with sound editor.

Best Play Pro Yakyuu (J)

(UNI) Debug menu:
Choose first option at main game menu ("league data") then select 2nd team name and edit it to そのべ (press A at team name, then move cursor Up and again press A), edit name as usual and return to main menu, press Select, Right, Left and menu will appear. You can listen game music and view ending and other sequences.

Best Play Pro Yakyuu II

(UNI) Debug menu:
Choose first option at main game menu ("league data") then select 2nd team name and edit it to そのべ (press A at team name, then move cursor Up and again press A), now select 5th team name and change its name to すだぴん. Return to main menu, point cursor to middle upper menu item and press Start. You'll be able to hear the music, view ending and other sequences and edit custom sounds with sound editor.

Best Play Pro Yakyuu Special

(UNI) Debug menu:
Choose first option at main game menu ("league data"), select any league then select 2nd team name and edit it to そのべ (press A at team name, then move cursor Up and again press A), return by pressing B button to main menu and choose middle upper menu item, move cursor down 12 times to point blue bar next to last position. Then return to main menu again and press Select at currently selected menu option. You'll be able to hear the music, view some winning sequences and edit custom sounds with sound editor.

Big Nose Freaks Out

(BURIED) GameGenie:
Absolutely all games by Codemasters have internal PRG ROM and CHR RAM testing routines. They called "Smiley tests". Tests are normally enabled, but for triggering it needs pressing all D-pad buttons. For performing PRG ROM test it needs to hold Up + Down + Left + Right + A + Select + Start. For performing CHR RAM test it needs to hold Up + Down + Left + Right + B + Select + Start. Without controller modification it is impossible. GameGenie codes allows you to do not use D-pad buttons for triggering cheat, only A + Select + Start and B + Select + Start. But it affects on ROM's CRC. I ran these tests normally by cheating with debugger, so I wrote normal CRC tests results in brackets.
EUNUVUNL-PRG CRC test (test ok)
AYOLXKYY-CHR RAM test

Big Nose the Caveman

(BURIED) GameGenie:
Absolutely all games by Codemasters have internal PRG ROM and CHR RAM testing routines. They called "Smiley tests". Tests are normally enabled, but for triggering it needs pressing all D-pad buttons. For performing PRG ROM test it needs to hold Up + Down + Left + Right + A + Select + Start. For performing CHR RAM test it needs to hold Up + Down + Left + Right + B + Select + Start. Without controller modification it is impossible. GameGenie codes allows you to do not use D-pad buttons for triggering cheat, only A + Select + Start and B + Select + Start. But it affects on ROM's CRC. I ran these tests normally by cheating with debugger, so I wrote normal CRC tests results in brackets.
EUSZLKNL-PRG CRC test (test ok)
ANVZYKYY-CHR RAM test

Bikkuri Nekketsu Shin Kiroku! - Harukanaru Kin Medal, Crash 'n the Boys - Street Challenge

(BURIED) Hidden text:
There is some hidden text list present in both Japan and USA versions. String index only initialized by 0 at game start, and nothing seems points to strings output routine. Cheat seems to be totally disabled.
00004560: 00 00 00 C1 00 C1 00 C1 00 00 23 18 1F 20 00 00 000.0.0.00SHOP00
00004570: 00 00 20 1E 1F 00 24 15 23 24 23 1E 14 00 24 15 00PNO0TESTSND0TE
00004580: 23 24 23 29 1F 1B 25 23 29 25 12 11 13 1B 24 15 STSYOKUSYUBACKTE

Binary Land

(GEN) Hi-score record:
If your score is higher than 30000 pts, press Select button after you die - you will be able to enter your name on the list of the best scores.

(GEN) Love story:
Hold on both first and second controllers A + B at the same time then press Reset to switch game to "Love story" mode. Title screen changed to "KIKU. MEGU. LOVE STORY" and when one of penguins will be hit by enemy it will be crying name of another penguin. "KIKU" is a programmer of HUDSON Kikuta Masaaki (菊田政昭). He put secret codes with messages almost in all his games under HUDSON label.

Bio Miracle Bokutte Upa

(BURIED) No Damage:
RAM variable 0x1C set to 1 instead 0, then message "NO DAMAGE" appears at stage number screen. No other noticeable differences.

Blue Marlin, The

(GEN) Sound test:
Hold Select + Start then press Reset.

(BURIED) Hidden text:
RESET routine in this game uses string "MEGUMI.MY.LOVE" to check if game was soft or hard reset.

Blue Shadow, Kage, Shadow of the Ninja

(FIX) Cheat mode:
Press A, A, A, A, B, B, B, B, A, B, A, B, A, B, A, B after selecting the number of players at the title screen. A sound will confirm correct code entry. Enter one of the following codes, then press Start on first controller. To start with invincibility, hold Down on second controller in addition to the other buttons.
B on second controller-Level 1-2
A on second controller-Level 1-3
A + B on second controller-Level 1-4
B on first controller-Level 2-1
B on first controller, B on second controller-Level 2-2
B on first controller, A on second controller-Level 2-3
B on first controller, A + B on second controller-Level 3-1
A on first controller-Level 3-2
A on first controller, B on second controller-Level 3-3
A on first controller, A on second controller-Level 4-1
A on first controller, A + B on second controller-Level 4-2
A + B on first controller-Level 4-3
A + B on first controller, B on second controller-Level 5-1
A + B on first controller, A on second controller-Level 5-2
A + B on controllers one and two-Sound Test

Blues Brothers, The

(UNI) Level skip:
Any time in the game press on the second controller Down + Right + A + B + Select + Start and the same time press Up + Right + A + B + Select + Start on the first controller. This will enable level skip feature. To skip level press A + B + Select + Start on any controllers, input from both controllers merges into one button combination. Message "Not bad but. You aint't seen nothin' yet!"

Bo Jackson Baseball

(GEN) All-Bo Jackson team:
Select any team, then press Left + B + Select at the team roster screen. Bo Jackson will appear in every position on the roster. Note: Bo's batting average is .399 and ERA is 1.53.

(GEN) Get Bo Jackson:
Select Chicago as a team, select a CPU opponent and press A. Press Up then press Select at the lineup screen to place Bo Jackson as your center fielder.

Bomber King, Robo Warrior

(BURIED) Theme song:
0x53!=0, 0x2F8!=0 => new title menu option, that plays theme song along with lyrics (!). 0x2F8 variable disabled to write in US version and there is no CHR tiles, this mode enabled only in Japanese version. Anyway, code for this mode have both versions. Don't know exactly how to enable it normally. Pobably this option enables after game beating.

Bomberman II, Dynablaster

(UNI) Password generator:
Level:-
Bombs:
Blast range:
Random:
Password JP:
Password US:

US version:

(FIX) Secret passwords:
K3456712-Sound Test
K138BHDJ-Manual detonator
K1HB3G1H-Semi manual detonator
KJH5C13D-Bonus stage
K2JG2135-Small primer time
K2JG2G1H-Normal primer time
K2JG2JF4-Long primer time

Japan version:

(FIX) Secret passwords:
PCDEFGAB-Sound Test
PACHINKO-Manual detonator
PANICMAN-Semi manual detonator
PONEJACK-Bonus stage
PBOMBACE-Small primer time
PBOMBMAN-Normal primer time
PBOMBOLD-Long primer time

Bonk's Adventure, FC Genjin - Freakthoropus Computerus

(GEN) Cheat mode:
Hold Down + Left + A + B + Select + Start at title screen. Switch between Level select and Sound test by pressing Select.

Booby Kids

(BURIED) Password option:
There is some text left from early development stage. "ENTER PASSWORD" should be written on other nametable and probably switchable with title screen.
0000EB50: 4C 54 44 2E FF 4E 20 43 4F 2C 4C 54 44 2E FE 28 LTD..N CO,LTD..(
0000EB60: 8A 45 4E 54 45 52 20 50 41 53 53 57 4F 52 44 FF .ENTER PASSWORD.
0000EB70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................

Bram Stoker's Dracula

(BURIED) GameGenie:
TOXEYNGT-Enable title screen cheat for enabling advanced menu features.
After applying GG press Select, Up, Start, Right, Left on title screen before "Push Start" message appears. A sound will confirm correct code entry. This is enables following features:
Invincibility:
Select "controls" menu item, hold A + B buttons and press Start, you will hear the sound, it is mean, you'll be full invincible.
Level select:
Select "sound" menu item, select sound index from 0 to 13, then hold A + B buttons and press Start, you will hear confirmation sound. Then just select "start game" option to play from selected level.

Bubble Bath Babes, Mermaids of Atlantis, Soap Panic

(UNI) Ending sequence:
At the title screen press Select then press Up, Up, Down, Down, Left, Left, Right, Right, A, A, B, B.

Bubble Bobble 2

(GEN) Level select:
Press at title screen Left, B, Right, Up, Down, Left, Right, B.

Bucky O'Hare

(UNI) Password generator:
Power:
Blue planet:
Red planet:
Green planet, Base HI:
Yellow planet, Base LO:
Password:

(GEN) Secret passwords:
HARD!-Hard mode

(BURIED) Copyrights check:
As most games by Konami made after 1991 year game contains some copy protection scheme, it checks for string "IMANOK 1991" presence in ROM, and for routine opcodes for this check itself. If checking fails, then game enables "HARD" mode with one-touch-death.

(BURIED) Sound check:
Also, Japanese version of game contain traces of "SOUND CHECK" presence between other game strings, but all code for handling and typing this string to screen has been disabled totally.

Buggy Popper, Bump'n'Jump

(GEN) Continue:
Hold Select on first controller and A + B on second controller at the game over screen. Then, press Start, Start on second controller while all buttons are still held.

Bugs Bunny Birthday Bash, Bugs Bunny Birthday Blowout, The, Happy Birthday Bugs

(BURIED) Sound test:
String contains in second bonus game stings table, seems it was possible to switch to that mode from this bonus game. But no accessing to this string procedures has been found. Cheat seems to be completely disabled.
000133C0: FE C0 C5 C3 B8 FE B2 C5 C4 C4 BF BE FE 8A 8A 0A .PUSH.BUTTON....
000133D0: 07 0C FE C3 BF C5 BE B4 FE BD BF B4 B5 FE BE BF ...SOUND.MODE.NO
000133E0: B0 0A 0C FE FE FE C4 B9 BD B5 FE B9 C3 FE C5 C0 @.....TIME.IS.UP

Bugs Bunny Crazy Castle, The, Bugs Bunny Fun House

(UNI) Password generator:
Level:
Password:
Note: levels 61, 62, 63, 64 are Special.

Burai Fighter

(GEN) Secret passwords:
LOBB-All weapons
KAGA-99 lives

Captain Ed

(UNI) Invincibility:
On boss sequence in no-flight game mode pause the game then press at on first controller Up + A + B + Select. After game is unpaused you will invincible.

(UNI) Secret passwords:
こひあ-Play with infinite energy.

(UNI) Secret words:
Enter as name.
きんた-Warp to BOSS stage.

Captain Saver, Power Blade 2

(UNI) Sound mode:
At title screen hold Left + A + B on second controller then press Start button on first controller.

Captain Skyhawk

(FIX) Nine lives, all weapons:
At title screen press Start and wait until the second title screen appears. Before screen disappears, hold Down + A buttons.

(GEN) Invincibility:
Press Up, Right, Down, Left, Up at the copyright screen, background will flash.

(FIX) Level skip:
Press Up + B on second controller during the game.

Captain Tsubasa (J), Tecmo Cup - Soccer Game

(UNI) Password generator:
Bits: