Mostly Unpublished NES Cheats ;)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.

  P'radikus Conflict, The
  Paaman - Enban wo Torikaese!!
  Paaman Part 2 - Himitsu Kessha Madoodan wo Taose!
  Pac-Land
  Pac-Man
  Pac-Mania
  Pachi Com
  Pachi-Slot Adventure 2 - Sorotta-kun no Pachi Slot Tanteidan
  Pachio-kun 2
  Pachio-kun 3
  Pachio-kun 4
  Pachio-kun 5
  Palamedes
  Palamedes 2 - Star Twinkles
  Panda Prince
  Panic Restaurant, Wanpaku Kokkun no Gourmet World
  Paperboy
  Parallel World
  Parasol Henbee
  Parasol Stars - The Story of Bubble Bobble 3
  Paris-Dakar Rally Special
  Perfect Bowling
  Perfect Fit
  Pescatore (Prototype)
  Pesterminator - The Western Exterminator
  Phantom Fighter, Reigen Doushi
  Pictionary
  Pinball
  Pin Bot
  Pipe Dream
  Pirates!
  Plasma Ball
  Platoon
  Pocahontas
  Pocahontas 2 (Super Game)
  Pocket Monster (Early Super Game), Panda World, Super PoPo's Adventure
  Pocket Monster Red (Waixing)
  Poke Block, Mahjong Block
  Poker Mahjong
  Pokemon Gold (Mars)
  Pole Chudes (Chudov)
  Power Blade, Power Blazer
  Power Punch 2
  Power Rangers III
  Power Rangers IV
  Predator
  President no Sentaku
  Prince of Persia
  Pro Action Replay
  Pro Sport Hockey, USA Ice Hockey in FC
  Pro Yakyuu - Family Stadium '87
  Pro Yakyuu - Family Stadium '88
  Probotector II - Return of the Evil Forces, Super C, Super Contra
  Punisher, The
  Puyo Puyo
  Puzslot
  Puzznic
  Pyokotan no Dai Meiro
  Pyramid (Sachen)
  Pyramid II (Sachen)

Cheats summary:
generic cheats-11
unique cheats-66
buried secrets-27
fixed generic cheats-7
unverified games-1
games with secrets-60
games with no secrets found-30

P'radikus Conflict, The

(UNI) Hi power weapon:
During flight mode, press Start to pause the game and press B, Up, Right, A, Down, Left, a sound will confirm correct code entry.

Paaman - Enban wo Torikaese!!

(UNI) Stage select (added 06.08.14):
Power the console off, hold one of the following button combinations on controller 1, then power the console on. At the title screen, select the "CONTINUE" option to start from the corresponding stage.
A-Stage 2
B-Stage 3
A + B-Stage 4
Select-Stage 5
A + Select-Stage 6

Paaman Part 2 - Himitsu Kessha Madoodan wo Taose!

(UNI) Software reset (added 06.08.14):
During the game, there is a "P" doors with various rooms. At the rooms with boxes, if you press Select + Start, you'll immediately return to the title screen.

Pac-Land

(BUR) Hidden text (added 02.01.09):
In addition to generic NAMCO buried copyrights, RESET routine in this game uses string
MR HIROKI AOYAGI
to check if game was soft or hard reset.

Pac-Man

(BUR) Hidden text (added 24.11.08):
In addition to generic NAMCO buried copyrights, RESET routine in this game uses string
HIROKI AOYAGI
to check if game was soft or hard reset.

Pac-Mania

(UNI) Extra 10 continues (added 28.06.13):
At the game over screen, press Up + A + Start on controller 1.

Pachi Com

(BUR) Hidden text (added 03.10.07):
The game ROM contains interesting hidden text in the Japanese language and in its South dialect. Some of programmers complaining about dumb director or stuff member, says about hidden pachinko sound stuff that "sounds better" and so on. Finally it says that similar message contain version of this game for MSX computer, but that message completely in South (Okinawa) dialect. ;)
Copyright 25/Sep|"T"shano        |kuseni henna    |================|monda !!!
/85 by Bear's   |DEG/NANA/KOYA   |oto bakari wo   |================| --------------
Programmed by   |TEMEI RA wa mae |ireyou to shite |"N"sha san wa   | --------------
Bear's Ver1.0   |ni itta kototo  |pachinko no oto |"I"sha no PROS80|NANDE 6502 no
Y.Sakakura      |chigau koto     |wo mushi suruna!|de kaihatsu     |decimal mode wo
Y.Suzuki        |bakkari iuna AHO|TAMA no oto ga  |shite irunokana?|nuitano ?
A.Abe           |TEMEI raga itta |kikoenai noga   |YOKU anna henna |decimal computer
T.Katoh         |kara TETSUYA    |sonnani iinoka !|machine(3"FD) de|nanoni .....
M.Yoshihara     |shite tsukutta  |MAENO oto mo    |tsukuru yona !  |Mask no kiri
Y.Kishimoto/MSX |noni "maeno hou |nokoshite aru   |OEKAKI mo ana wo|machigai ja nai?
Pictured by     |ga yokatta"     |node kikitai    |nazotte kakuno  |================
Makoto.Higa     |nante iunjanei! |nara naoshitene |kana ?          |MOSHIMO korewo
================|KONNA tsumaranai|HEX address no  |ANA wo nazoru   |mita hitowa "H"!
KOKOKARA SAKIWA |bonus stage &   |?? wo data ?? ni|noga iyana kata.|MSX no PACHICOM
IITAI HOUDAI !! |tamazumari wo   |?- wo data ?? ni|Bear's no OEKAKI|nimo MESSAGE ga
Kikakuno JPM no |darega yaru to  |sureba mashina  |machine(ROM) &  |arimasu .....
Mr.GOUHARA wa   |omotte irunda ! |oto ni narimasu.|debugger wo 500 |"H" na hitowa
nan nimo shinai |SELECT de JOY wo|(Tiger_V&Kugi)  |man YEN de uri  |katte mitene !
kuseni iro iro  |migi ni sureba  |"T" sha no aho  |masuyo....      |Tadashi RYUUKYUU
iiyagatte URUSAI|futsuu wa +1    |to GOU no Baka !|Tel 03-864-6880 |hougen desuyo !
YAROUDA BAKA !  |sarerunda baaka!|yoi oto wa dare |KIREI na E no   |MITANOWA NAISHO
 -------------- |OTO no kaisha no|demo wakarundai!|tame nara yasui |NI SHITENE !!!


Pachi-Slot Adventure 2 - Sorotta-kun no Pachi Slot Tanteidan

(UNI) Luck adjust 1 (added 11.12.13):
During the slot-machine play, after inserting of coins, hold A then press Down.

(UNI) Luck adjust 2 (added 11.12.13):
During the slot-machine play, after inserting of coins, hold B then press Down.

(UNI) Luck adjust 3 (added 11.12.13):
Some slot-machines doesn't have this option. During the slot-machine play, after inserting of coins, hold Start then press Down. For one slote-machine session only one cheat is allowed, if you enter any of this cheats, it will stay enabled until you exit the slot-machine session.

Pachio-kun 2

(UNI) Force people to move along (added 11.12.13):
During the game, some NPC are sitting in front of slot-machines and leave it only after a while. If you can't wait, talk to it, but to finish conversation, instead of A hold Up + Down then press B, NPC will immediately move along. The same is for any NPC blocking your way.

(UNI) Get read of all people (added 11.12.13):
During the game, hold Up + Down then press Select. All people on the level will disappear.

(UNI) Play top-level pachinko (added 11.12.13):
During the game, stand before any pachinko-machine, hold Up + Down then press A.

Pachio-kun 3

(UNI) Cheat mode (added 11.12.13):
First you must enable the cheat mode. Hold A both on controller 1 and controller 2 then press Reset. During demo sequence or at the title screen hold B both on controller 1 and controller 2 then press Start on controller 1. A sound will confirm correct code entry. This cause a different effects during the game.
Now you can force people to move along if they sit or blocking your way. Talk to them, and at the end of conversation hold Up + Down then press B.
Also select any pachinko-machine, when asked "YES" or "NO", select "YES", then hold Select and press A to enable the pachinko-machine selection mode. You can press Up or Down to select machine type, Left or Right select machine level, press B to enable "rock", press A or Start to start pachinko-machine.
Do the same as previous, but hold Select + Start before selecting "YES". All machines of this type will be instantly beaten.
Additional cheat can be enabled if you did the first one. When game just started, Pachinko-King will speak to you. When his introducing conversation is over, hold Select + Start then press A to move to the map screen. Now return back to the Pachinko-King to solve the final puzzle and finish the game with all 15 houses beaten at the higher rate. Also, this will cause a total AI cancelation in all houses, no one is able to move or use any pachinko-machine, although they can speak with you, but you no need to force them to move along.

Pachio-kun 4

(UNI) Cheat mode (added 12.12.13):
Due to similar engines, the cheat for this version mostly the same as for Pachio-kun 3. To enable cheat mode press A both on controller 1 and controller 2 at the controller selection menu. During demo sequence or at the title screen hold B both on controller 1 and controller 2 then press Start on controller 1. A sound will confirm correct code entry. This cause a different effects during the game.
Now you can force people to move along if they sit or blocks your way. Talk to them, and at the end of conversation hold Up + Down then press B.
Even more, you can get rid of all people in the house, just hold Up + Down then press Select while in house.
Also select any pachinko-machine, when asked "YES" or "NO", select "YES", then hold Down + Left + Select and press A to enable the pachinko-machine selection mode. You can press Up or Down to select machine type, Left or Right select machine level, press B to enable "rock", press A or Start to start pachinko-machine.
Do the same as previous, but hold Select + Start before selecting "YES". The machines of this type will be instantly beaten.
Additional cheat can be enabled if you did the first one. At the main game menu, while selecting a start or contiue game options and settings, hold Select or Start or both then start a game. If done righ, a total AI cancelation in all houses will be enabled. No one is able to move or use any pachinko-machine, although they can speak with you, but you no need to force them to move along.

Pachio-kun 5

(UNI) Cheat mode (added 12.12.13):
Due to similar engines, the cheat for this version mostly the same as for Pachio-kun 3/4. To enable cheat mode press A both on controller 1 and controller 2 at the controller selection menu. During demo sequence or at the title screen hold B both on controller 1 and controller 2 then press Start on controller 1. A sound will confirm correct code entry. This cause a different effects during the game.
First of all, when creating a new save after enabling this cheat, you'll get extra 500 coins to a new save slot.
Now you can force people to move along if they sit or blocks your way. Talk to them, and at the end of conversation hold Up + Down then press B.
Even more, you can get rid of all people in the house, just hold Up + Down then press Select while in house.
Also select any pachinko-machine, when asked "YES" or "NO", select "YES", then hold Down + Left + Select and press A to enable the pachinko-machine selection mode. You can press Up or Down to select machine type, Left or Right select machine level, press B to enable "rock", press A or Start to start pachinko-machine.
Do the same as previous, but hold Select + Start before selecting "YES". The machines of this type will be instantly beaten. At some point this will cause also an instant win for some pachinko-machines without even using a cheats.
Additional cheat can be enabled if you did the first one. At the main game menu, while selecting a start or contiue game options and settings, hold Select or Start or both then start a game. If done righ, a total AI cancelation in all houses will be enabled. No one is able to move or use any pachinko-machine, although they can speak with you, but you no need to force them to move along.

Palamedes

(GEN) Sound test:
At the title screen, hold A + B on controller 2 and press Start on controller 1.

(GEN) Ending sequence:
At the title screen, hold Right + A on controller 2 and press Start on controller 1.

Palamedes 2 - Star Twinkles

(UNI) Sound test:
At the title screen, hold A + B on controller 2 and press Start on controller 1.

Panda Prince

(UNI) Copyright screen 1:
At the title screen or at the player select menu, press Up, Left, Down, Down, Right, Right, Left, Up.

(UNI) Copyright screen 2:
At the main menu, press Left, Up, Right, Right, Down, Down, Left, Up.

(UNI) Level select:
Find and enter a hidden bonus room on any stage, then just press Start, a small number appears in the middle of the screen. Press Up or Down to change the number, press Start to start from the selected level.

(BUR) GameGenie:
AANGAIPA-Switch the game to "Chinese" mode. All text messages, story and the title screen will change to the Chinese language.

Panic Restaurant, Wanpaku Kokkun no Gourmet World

(UNI) Extra 1 life (added 13.11.08):
During the game, when no more lives left and scores are divisible by 200 (eg 200, 600, 2200, etc.) as well as exactly 50 seconds left on the timer, press Start to pause the game, then press A + B, and a single extra life will be obtained.

Paperboy

Japanese version:

(UNI) Extra 7 lives (added 26.01.14):
During the game, when no more lives left, press Start to pause the game, then hold Up, press A, press B, release Up, hold Right, press B, release Right, hold Up, press A, release Up, hold Left, press B, release Left, hold Down, press B twice, release Down, hold Right, press A.

Parallel World

(UNI) Secret passwords (added 11.08.14):
All numbers are correspond to the certain tiles with patterns on the password screen. A blank tile (without pattern) is a number 0. Each number means how much times you should press A to reach the desired pattern.
5 1 1 6
9 1 1 7
2 0 0 2
3 0 0 3
-Sound test
5 1 1 6
2 5 6 2
2 0 2 2
4 1 3 2
-Ending sequence
5 6 5 6
4 0 0 3
5 0 0 6
4 3 4 3
-Unlimited lives

Parasol Henbee

(UNI) Secret passwords (added 28.06.13):
えあわせ-Boss Minigame 1
すもうき-Boss Minigame 2
すもうし-Boss Minigame 3
むてきさ-Invulnerability
としひこ-Game over message
もとひろ-Game over message
しんんん-Game over message

Parasol Stars - The Story of Bubble Bobble 3

(UNI) Unlimited Continue:
At the title screen, press A, B, B, A, Left, Right, Left, Right. A "c" letter will appear in the upper left screen corner.

(BUR) Hidden text (added 13.11.08):
Most of the games programmed by Ocean shares the same music driver library all along with the hidden version and copyright string:
MUSIC DRIVER V1.0 (C)JONATHAN DUNN & OCEAN SOFTWARE


Paris-Dakar Rally Special

(UNI) Debug mode:
At the title screen, press Up, Up, Down, B, Right, Left, Left, Start. You will obtain an extra 99 lives every level automatically. During game, press Select + Start to skip current level.

Perfect Bowling

(UNI) Music select (added 12.08.14):
At the player setup screen in any game mode, press Select to cycle through the background music or switch it off.

(UNI) Split mode (added 12.08.14):
Select the Training game mode, setup the player's name, hand and bowl weight. Before press A on controller 1 to complete the player setup, hold B on controller 2. In this mode the field setup for each round is predefined and it will be always the split setup, where the bottles will be always placed separately. This is training for the skilled players.

(BUR) GameGenie (added 10.12.10):
AENNONNY-Re-enables a different title screen, which is used in unreleased US version of this game. Though, there is no according CHR bank with proper data, so the title shows only garbage.

Perfect Fit

(BUR) GameGenie (added 08.10.08):
PASZSYAA-Normally, you can play this game alone, with computer or with another player. When you play with computer, it's name is always "ELECTRO" and its player number always 2. But game designed with another player controlled by computer with player number 1 in mind. It's name is "LI'L BIT" and it's always out of business. With this game genie code you can enable it as player 1 in two player mode with computer. In this mode two computers will play themselves, but second one will with empty name since game is not designed for two computer players.
GGOPPOLK+XPOPZOOO-There is the test screen called "DEMONSTRATION SCREEN" left inside of the release ROM, a leftover from the development stage. With this code you can re-enable it instead of the copyrights screen. This screen is waiting three times longer than copyrights screen and can be skipped by pressing any button.
UEEOKZXA+YENPVXKX+XKKPEXVV-In addition to the previous code, this codes re-enables the timer on the "DEMONSTRATION SCREEN", which counts the time is left before the screen is disappear.
AXXOSOSA+PXXOVOUS+VXXONPZE-This codes re-enables an additional string on the copyright screen with build date: "20TH SEPTEMBER, 1989.". Seems it was planned to release in Japan in 1989 year, but cancelled.

Pescatore (Prototype)

(UNI) Soft reset (added 12.08.14):
During the game, press Select + Start to reset the game.

(UNI) Credits (added 12.08.14):
At the title screen, press Select to see the credits. Press A at the last credits screen to play various sound efffects.

Pesterminator - The Western Exterminator

(UNI) Invulnerability and level select (added 12.12.13):
During the game, hold Up on controller 2 and on controller 1 hold Up + A, then press B. Release all buttons, now any time you can hold A and press Select to enable invulnerability or hold B and press Select to skip current level.

(UNI) Unlimited continue (added 12.12.13):
At the game over screen, hold additionally Down, then press A + Start to continue the game without decreasing the continue counter.

Phantom Fighter, Reigen Doushi

(BUR) GameGenie (added 12.12.13):
GEKZUOGK (the Japanese version only)-Re-enables a secret name. If you enter now the name "むてき", you'll be invulnerable and can go through the doors without beating the phantoms.
PEVZSPAA (the Japanese version only)-In addition to previous code, this will also gives to you an extra 99 scrolls and all items.
AAXZVZPA (the US version only)-Force the Invulnerability mode, similar to described above, but without extra scrolls and items.
GENGNKGK (for the Japanese version)
GAOGNSGK (for the US version)
-Re-enables a level skip cheat. Just press Down on controller 2 during the game.
GAEGUSGK (for the Japanese version)
GAXGUSGK (for the US version)
-In addition to previous code, this will also re-enables the jump back to the previous level by pressing Up on controller 2.
GASTAYZA+XISTINGA+OLSTTNNE (for the Japanese version)
GANVYYZA+SNETGNGE+OUETINNA (for the US version)
-Re-enables the Demon Fight mode debug window. During Demon Fight, press A or B on controller 2. Since there is not known, where it should be called, code caused some glitches. In the US version all text still in Japanese, so you couldn't actually read it.

Pictionary

(BUR) Abuse filter (added 09.01.08):
No one of the following words you could enter as any part of the player's name: "FUCK", "SHIT, "CUM", "FART", "BASTARD", "TIT", "PISS", "CRAP", "BALLS", "PRICK", "ASS-HOLE", "FAGG", "CLIT", "TURD", "JERKOFF", "DICKHEAD", "BITCH", "AHOLE", "ANUS", "BOOB", "BONER", "BREAS", "DIKE", "DONG", "DILDO", "JERK", "HOMO", "HORNY", "MOTH", "MOOK", "ORAL", "PECKER", "PENIS", "PUSSY", "QUEER", "SEX", "SHLONG", "SUCK", "VAGINA".

(BUR) Hidden text (added 02.12.08):
This game using for padding some info about developers.
PICTIONARY       1989
      PROGRAMMER   TONY POMFRET
      ARTIST       CRAIG HOUSTON
      MUSICIAN     TIM FOLLIN
======== SOFTWARE CREATIONS LTD
  FIRST FLOOR  2 4 OXFORD ROAD
MANCHESTER  M1 5QA
GREAT BRITAIN
TEL 061 236 1154
FAX 061 236 824


Pinball

(BUR) Hidden text (added 15.06.12):
There is a hidden copyright message inside the game ROM for all versions except VS:
BY S.MATSUOKA & S.IWATA


Pin Bot

(GEN) Pause menu (added 14.08.14):
During the game, press B on controller 2 to enter the Pause menu, where you can switch on and off music, speech or sound effects, using the controller 2.

(BUR) Hidden text (added 08.02.13):
There is a hidden copyright text inside the ROM:
 (C) COPYRIGHT 1988 RARE LTD. ENGLAND.


Pipe Dream

(UNI) Cheat mode (added 09.06.11):
During the game press Start, continue holding Start then press A, B, B, A, release Start then press any button to return to the normal game. Now, press B to pause time, press Select to release time flow again. This will also gives an unlimited wrenches, as well as automatic jump to the next round even if you failed in this round.

(UNI) Soft reset (added 09.06.11):
Press A + B + Select.

Pirates!

(UNI) Hall of fame reset (added 28.06.13):
At the hall of fame, press Right + B + Select.

(UNI) Saved games reset (added 28.06.13):
At the first copyright screen, hold Right + A + B + Select until the title screen appear.

Plasma Ball

(UNI) Sound test (added 14.08.14):
At the title screen, select the "1 PLAYER" option, hold Left + A + B on controller 2, then press A or Start on controller 1. Use controller 1 to select and play the background music, use controller 2 to select and play sound effects.

(BUR) GameGenie (added 10.12.10):
PENNOYAA-Re-enables the debug mode. Some additional info will be displayed at the game field while in battle. There are 12 hex numeric characters in row, some of chars are missing though.

Platoon

(UNI) Secret words:
Enter one of the following words as a player name at the hi-score screen:
KOMADA-Sound test
SUZUKIKUN-Ending sequence
HIROKUN-Ending sequence

(BUR) GameGenie (added 15.08.14):
ZONAPEIZ+XENAZEOS-Partially re-enables the stage edit mode for the "Jungle Confrontation" level. Press Start during this stage to enter the edit mode. Use controller 2 to move or place obstacles on the stage. Due to some address changes, you couldn't switch the stages by pressing B on controller 2, to make it work there is more hacking heeded.

Pocahontas

(UNI) Stage select:
Before the title screen appears, press A + B + Select + Start.

(BUR) GameGenie (added 18.08.14):
ZAXEPEXY+OAXEZAEA+EPXEIAEO+YLXAIAZS-Re-enables the test menu, similar for a couple ot Taiwanese games by the same developer.
Just press Reset. Right before the test menu, a small copyright screen "FC SYSTEM" will appears and message "LIBRARY READY!" will flash for a couple of seconds. Under the "(C) COPYRIGHTS" string there is another string "EI-HOW YANG", but it's colored the same as background and you couldn't see it.
The "LEVEL MAP TEST" menu item doesn't work here, unfortunately.
ZLNZKEYZ+GESZXOGK-Re-enables the starting logo "DIESNY INTERACTIVE".
GAXEZEGK-Re-enables a partially working Demo Recording development feature, before every demo replay.

Pocahontas 2 (Super Game)

(UNI) Debug mode:
At the title screen, press Up, Left, Down, Right, A, A, B. Pause the game and press A + B, move the character to any place of the map, press Start to return to the normal game at the new position.

(UNI) Level select:
At the title screen, before pressing Start, hold one of the following buttons:
Down-Level 2
Left-Level 4
Right-Level 6

Pocket Monster (Early Super Game), Panda World, Super PoPo's Adventure

Poket Monster version:

(GEN) Debug mode (added 18.08.14):
During the game, on pause, use the D-Pad buttons to place the character at any part of the stage or press Select to skip current level. There also a debug memory viewer, disabled in all versions of this game, but only in this version there a leftover from it: on pause press A + B to hear a sound, which index is controlled with one of the vars, used for memory viewer previously. If you change address $0004, you'll hear a different sounds any time you press A + B.

Panda World version:

(UNI) Level skip (added 25.01.10):
Pause the game and press Select, Up, Up, Down, Down, Left, Left, Right, Right, A, A, B, B. Pressing Select also resets the code entry to the beginning.

PoPo's Adventure version:

(UNI) Level skip (added 29.05.16):
Pause the game and press Select, A, B, A, A, B, B, A, A, A, B, B, B. Pressing Select also resets the code entry to the beginning.

Pocket Monster Red (Waixing)

(UNI) Secret message (added 18.08.14):
During the game, any time press Right + A + B + Select + Start on controller 1 to see a secret copyright message.

Poke Block, Mahjong Block

(UNI) Stage select (added 13.12.13):
At the options menu, highlight the "LEVEL" option, then press Down + A to cycle the level number from 0 to 8, press Down + B to cycle the sublevel number from 0 to 4 and finally press Up + Down to add 10 to the level number up to 30.

Poker Mahjong

(UNI) Easter egg (added 10.04.10):
Select the "FOR ADULT" game mode (third option at the title menu), on the screen with the game and the password menu options, press A, B, Up, Down, Left, Right, Select, Select, Select, Select.

(UNI) Cheat mode (added 10.04.10):
During the player's turn, pause the game then enter code Up, Up, Down, Down, Left, Right, Left, Right, B, A. A sound will confirm correct code entry. Now you can select any card instead of getting the random one. Enter this cheat one more time to toggle the game back to the normal mode.

Pokemon Gold (Mars)

(UNI) Easter egg (added 13.12.13):
During the game, enter the menu by pressing Select then press Left + A + B + Select + Start on controller 1. A "MARS" logo screen will appear.

Pole Chudes (Chudov)

(UNI) Secret message (added 18.08.14):
At the difficult selection screen, press Right + A on controller 1, a sound will be heard, now you can should press Start to return back to the selection menu or press Left + B on controller 1 to show the secret copyright message from the developer.

Power Blade, Power Blazer

All versions:

(FIX) Sound mode:
At the title screen, hold Left + A + B on controller 2 then press Start on controller 1.

(BUR) Hidden text (added 19.01.09):
There is a hidden message inside the game ROMs:
TOSHIKAZU IWASA


Japanese version:

(UNI) Power Boomerang:
At the title screen, press Left, Up, Right, Down, Up, Up, B, A, B, A, Start.

US version:

(UNI) Password generator:
Current sector:
Level:
Ration:
Progress:Sector 1 
Sector 2 
Sector 3 
Sector 4 
Sector 5 
Sector 6 
Rations:Sector 1 
Sector 2 
Sector 3 
Sector 4 
Sector 5 
Sector 6 
US Password:


Power Punch 2

(FIX) Round skip (added 20.08.14):
When the picture of the next opponent appears, hold Select and press Start .

Power Rangers III

(UNI) JY company's Easter egg:
At the title screen, press Up, Right, Up, Right, Right, Right, Up, Left.

Power Rangers IV

(UNI) JY company's Easter egg:
At the title screen, press Up, Right, Up, Right, Right, Right, Up, Left.

Predator

All versions:

(GEN) Suicide at normal level (added 20.08.14):
Any time during normal levels, press Start, then A or B.

(UNI) Skip normal mode levels (added 06.08.11):
Any time during normal levels, hold Left + Right, then press A or B.

(UNI) Skip big mode levels (added 20.08.14):
Before entering the big mode levels, hold Up + Down + A and wait until the normal level number screen appears.

Japanese version:

(BUR) Sample ROM:
In the Japanese version the text block with message "PREDATOR SAMPLE ROM" exist, but there is no script entry to put this message on the screen in the final release. All English versions haven't these strings.
000119A0: 0A 22 5F 61 54 53 50 63 5E 61 FF 00 22 F1 FF 4A ..PREDATOR.....;
000119B0: 22 62 50 5C 5F 5B 54 F1 61 5E 5C FF 00 22 F1 FF .SAMPLE.ROM.....
000119C0: EA 20 62 63 50 56 54 FF 00 20 F1 FF 2A 21 5F 5B ..STAGE.......PL


President no Sentaku

(UNI) Counters cheats (added 21.08.14):
At the title screen, press Start to jump to the title menu, now press A and B in any order for a corresponding number of times (see the table below) to enable a couple of different effects or game modes.
A 2 times, B 2 times-Sound Test
A 3 times, B 3 times-Ending Sequence
A 6 times, B 6 times-Warp to the game level 2
A 10 times, B 9 times-Warp to the game level 3
A 13 times, B 3 times-Warp to the game level 4
A 4 times, B 4 times-Extra event at the end of the day 1
A 6 times, B 2 times-Extra event at the end of the day 2
A 8 times, B 2 times-Extra event at the end of the day 3

(BUR) GameGenie (added 30.06.09):
NXVVXKZX+VVVVUKSV-Re-enables "GAMEN TEST" instead of "SOUND TEST", allows you to see all game dialogs, menus and events, some of them rather glitchy.

(BUR) Hidden text (added 02.11.08):
Game ROM contain some hidden copyright text:
1989ANOTHERltd.
and
Another Ltd. 1989/6/09 New バージョン
Also this game uses the string
HOT-B
as a SRAM signature.

Prince of Persia

(UNI) Password generator (added 25.07.08):
Level:
Time:
Random: 
Password:


Pro Action Replay

Version 1.2:

(UNI) Secret message (added 23.04.10):
Hold Select then enter to the main menu. A screen with the program version, copyrights, date and checksum will appear.

Pro Sport Hockey, USA Ice Hockey in FC

Japanese version:

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

US version:

(BUR) GameGenie:
IEKNZYYO-Re-enables the "Sound test".
Just press Reset.

(BUR) Hidden text (added 22.08.14):
The RESET routine in this game uses string
TakePong (1992-)
to determine if it was hard or soft reset. Also, the password decoding string here is
PassWordChecker


Pro Yakyuu - Family Stadium '87

(FIX) Credits (added 23.08.14):
At the title screen, hold A or B or both on controller 1 then press Start.

Pro Yakyuu - Family Stadium '88

(GEN) Credits:
At the title screen, hold A + B on controller 1 then press Start.

(BUR) GameGenie (added 23.08.14):
XVXNUPAV+XTKLSIAV-Re-enables the simple memory viewer/editor. You need a 4-player adapter for the famicom, to use it. On Controller 3, press Select to enable the memory viewer/editor, use the buttons on Controller 3 to change address and data, press Select again to disable it.

(BUR) Hidden text (added 23.08.14):
There are a generic Namco copyrights inside the ROM, partially used to determine if game was hard or soft reset
COPYRIGHT 1986,1988 NAMCO LTD.ALL RIGHTS RESERVED 88.9.2 KISSIE


Probotector II - Return of the Evil Forces, Super C, Super Contra

All versions:

(GEN) Sound test:
At the title screen, hold A + B and press Start.

(BUR) Hidden text (added 23.08.14):
There are a build dates of the ROMs in every version of this game:
MAST891129
-for the US version
MAST920331
-for the European version
MAST891005
-for the Japanese version

US version:

(FIX) Extra 10 lives:
At the title screen, press Right, Left, Down, Up, A, B.

Japanese version:

(FIX) Extra 30 lives:
At the title screen, press Right, Left, Down, Up, A, B.

(UNI) Level select (added 02.02.12):
At the title screen, hold Down + Select then press Start. Select area number then again press Start.

Punisher, The

(GEN) Credits (added 25.08.14):
Every fifth demo loop (copyright screen, shot animation, title screen, period...) will start with the Credits screen instead of the Copyright screen. Otherwise this screen can be seen after the completing the game.

(FIX) Mission select screen codes (added 30.10.07):
At the any mission selection screen, enter one of the following button codes on controller 2 to get the corresponding effect. A sound will confirm correct code entry. Each code can be entered limited number of times as well as they can be combined with each others.
Left, Right, A, Right, B, Up, Up, A-Maximum lifebar (can be entered 4 times)
Right, A, B, B, B, A, Left, A-Extra 999 submachine gun rounds (can be entered 2 times)
A, B, B, Up, Up, Left, Down, A-Extra 25 bazooka rounds (can be entered 2 times)
Up, A, A, A, A, Left, Left, Down-Extra 999 assault rifle rounds (can be entered 2 times)
Down, B, A, B, Up, Down, Down, Right-Level skip (can be entered once, but effect is permament, just press Select during the game)

(UNI) Maximum percentage (added 25.08.14):
At the "STAGE COMPLETED" screen, quickly hold Down + Right + B on controller 1 before the percentage counter is displayed. If done right, the percentage counter will be 100, no matter if you doesn't shoot anybody. So you can instantly obtain a maximum bonus.

(UNI) Easter egg (added 25.08.14):
After completing the game, at the final Punisher's line ("WELL, MY JOB'S FINISHED..."), hold Up + B + Select on controller 1. You'll see the scary Punisher's face.

(BUR) Hidden text (added 25.08.14):
There is an hidden copyright string inside the ROM:
PROGRAMMING BY JAMIE RIVETT

Source: tcrf.net

Puyo Puyo

(GEN) Sound test:
At the main menu, hold Up + A + B then press Start.

(GEN) Different background graphics:
At the main menu, hold Down and press Start.
Source: ReyVGM

(UNI) Unused password entry mode (added 25.08.14):
At the password screen, select the fourth password character to edit (do not change the first three!), select a letter, hold Select and press A or Start. To the right of the password a new string ended with "0" will appear. Every time you press A or Start while holding Select at this position, a new letter will be added to this string. You can't return and change previously entered symbols, there are 8 symbols total to enter. When finish, enter last three characters of the password as usual, but do not change the "?" in the first one!. Now, hold Select and press A or Start. The programm will compare the sum of particular chars in 8-symbol string you entered with corresponding character you entered at the password string and if they match will display the "PASSWORD OK!" message. However, there is no purpose in this sting here at all in the final version of the program. To test this, just enter the secret pass "00000000" as described above, then enter password "?000" and the check will pass.

(UNI) Password generator (added 15.09.14):
Level:
Random:
Password:
Secret password:
Check code:


(BUR) GameGenie (added 14.12.13):
EAENEYAA-Re-enables the different game mode cheat. Hold Up + A + B + Select + Start then press Reset. Now the title screen will change it's color and in 2 players mode two limits 42 and 60 will be changed to 50 and 80 accordingly.

Puzslot

(UNI) 2-Player mode patterns change (added 26.08.14):
Enter the 2-Player mode menu, hold Up and press Start. This will change the slot patterns and rise difficult of the game.

(FIX) Different story:
At the title screen, press B, B, B, B, B, A, A, A, then hold Up and press Start. This not only changes the slot patterns and difficult of the game, but changes the cutscenes between levels. Only one single cutscene is available in this mode after the final round, and it's fantasy themed.
Source: ReyVGM

(GEN) Extra stage select:
At the title screen, press B, B, B, B, B, A, A, A, then hold Down and press Start. If done right, you'll be able to select levels 5, 10, 15 and 20.
Source: ReyVGM

(UNI) Demo record leftovers (added 26.08.14):
At the title screen, hold Up + Down + Left + Right + A + B + Select + Start and wait until the demonstration starts. This will likely won't work always, since the current game programm doesn't allow Left + Right pressed at the same time, but if you being lucky enough, the button combination will pass. Anyway, there is not much left from the demo record code, you doesn't even able to stop the record and replay it anymore. But the recorded data will be saved to the SRAM and can be read later.

Puzznic

(UNI) Secret passwords (added 26.08.14):
FCPZ-"PUZZNIC" mode Stage select
ZZ1C-"GRAVNIC" mode Stage select

Pyokotan no Dai Meiro

(BUR) GameGenie:
ZEEIVAPA-Re-enables the debugging screen. Just press Reset.

Pyramid (Sachen)

Sachen-Hacker version:

(UNI) Picture test (added 07.04.10):
At the title screen, press Up, Down, Left, Right, Up, Down, Left, Right. You can see the game's nude picture as well as edit palette.

Pyramid II (Sachen)

(UNI) Secret message (added 10.04.10):
During the game, press Up, Up, Up, Up, Up, Up, Up, Up, Select, Select, Select, Start.

 

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