Mostly Unpublished NES Cheats ;)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.

  Hacker, The (Nanjing, NJ032)
  Hana no Star Kaidou
  Hanafuda Yuukyou Den - Nagarebana Oryuu
  Hanjuku Eiyuu
  Happy Camper
  Happily Ever After (Prototype)
  Harry's Legend, Titenic
  Hatris
  Heavy Barrel
  Heavy Shreddin', Snowboard Challenge
  Hector 87, Starship Hector
  Heisei Tensai Bakabon
  Hell Fighter (Sachen)
  Hello Kitty World
  Hero on Devil Lands (Waixing)
  Hi no Tori - Houou Hen - Gaou no Bouken
  Higemaru Makaijima - Nanatsu no Shima Daibouken, Makai Island
  High Speed
  Highway Star, Rad Racer
  Hiryuu no Ken III - 5 Nin no Ryuu Senshi
  Hiryuu no Ken Special - Fighting Wars
  Hissatsu Doujou Yaburi
  Hissatsu Shigoto Nin
  Hit Marmot
  Hit the Ice
  Hokkaidou Rensa Satsujin - Ohotsuku ni Kiyu
  Hokuto no Ken
  Hokuto no Ken 2 - Seikimatsu Kyuuseishu Densetsu, Fist of the North Star
  Holy Diver
  Home Alone
  Home Alone 2 - Lost in New York
  Home Run Nighter '90 - The Pennant League
  Honoo no Doukyuuji - Dodge Danpei
  Honoo no Doukyuuji - Dodge Danpei 2
  Hook
  Hoshi no Kirby - Yume no Izumi no Monogatari, Kirby's Adventure
  Hoshi o Miru Hito
  Hototogisu
  Hottaaman no Chitei Tanken
  Hu Lu Jin Gang (Nanjing, NJ039)
  Huan Shi Lu (Nanjing, NJ034)
  Huang Di
  Huang Jin Tai Yang (Nanjing)
  Hudson Hawk
  Hudson's Adventure Island, Takahashi Meijin no Bouken Shima
  Hudson's Adventure Island II, Takahashi Meijin no Bouken Shima II
  Hudson's Adventure Island III, Takahashi Meijin no Bouken Shima III
  Huge Insect
  Hunt for Red October, The
  HVC Kensa Cassette Controller Test
  Hydlide, Hydlide Special
  Hydlide 3 - Yami Kara no Houmonsha
  Hyokkori Hyoutan Shima - Nazo no Kaizokusen
  Hyper Olympic, Hyper Sports, Hyper Olympic Genteiban!, Track & Field, Track & Field in Barcelona

Cheats summary:
generic cheats-21
unique cheats-51
buried secrets-34
fixed generic cheats-10
unverified games-0
games with secrets-54
games with no secrets found-22

Hacker, The (Nanjing, NJ032)

(BUR) Hidden text (added 04.12.08):
There is some hidden copyright text in ROM:
TomSoft Studio.  E-mail:tomsoft@ihw.co.cn.  Tel:(029)7223482
and
tomsoft-1997


Hana no Star Kaidou

(BUR) Hidden text (added 28.07.13):
There is some hidden copyright text in ROM:
 1987/01/20 V1.0
 PRODUCED
    BY T.FUJITA 


(BUR) GameGenie (added 28.07.13):
PAEGLAAA-Re-enables simple debug mode. Press A on controller 2 to instantly win the current level. Press B on controller 2 to skip to the next level.

Hanafuda Yuukyou Den - Nagarebana Oryuu

(UNI) Gallery (added 28.07.13):
During the game, hold Up + A + B + Select on controller 1 for a couple of seconds.

Hanjuku Eiyuu

(FIX) Sound test:
Any time during the game, on controller 2, hold A, press B, hold B, release A and hold it again, release B and hold again, release A, press Right. You'll hear a sound. Now you can use Left or Right on controller 2 to cycle through the sounds, and Up or Down to cycle through the music.
Source: ReyVGM

(UNI) Random towns (added 09.05.14):
At the map screen duging game, on controller 2, do the same as for the Sound test cheat, but instead of pressing Right, press Left at the end of the cheat sequence. From now, if you shout to the microphone on controller 2, the town occupations will be randomly shuffled, even if some towns was previously occupied by the same flags, they all will be randomly shuffled again to all players. This will also enables the Time speed increase and Unknown cheats at the same time. To forbid this to happed, hold Down on controller 2.

(UNI) Increase time speed (added 09.05.14):
Duging game, on controller 2, do the same as for the Sound test cheat, but instead of pressing Right, press Down at the end of the cheat sequence. Now the time will go much faster, as well as the movement speed of all enemies. If combined with the Random towns cheat, this will disable the shop events.

(UNI) Unknown (added 09.05.14):
Duging game, on controller 2, do the same as for the Sound test cheat, but instead of pressing Right, press Up at the end of the cheat sequence. Something happen when you select your last or castle with number 12. Need investigate.

Happy Camper

(GEN) Level select:
Anytime during the game, hold B and press Select. It will warp you to a new area in the game. Some of these areas are unplayable, but you can keep doing this trick until you get to an area that is playable.

Happily Ever After (Prototype)

(BUR) GameGenie (added 22.05.16):
GAUGLXGK-Re-enables two debug cheats.
Hold Start, then press Reset to access a simple Sound test. Use D-Pad to select music or sounds, press A to play or B to stop.
Hold Select, then press Reset to access a simple level select. Just press one of the D-Pad buttons to get to the corresponding level. Additionally, hold A to enable full items and invulnerability during the game.

Harry's Legend, Titenic

(UNI) Water level change (added 13.05.14):
Seems this is a leftover or debug feature for the "Titenic" versions of the game. During the game, press Up or Down on controller 2 to change the level of water filling the current screen.

(UNI) Call support (added 13.05.14):
During the game, on controller 2 press A to enable the selection for the supporting character. Press Left or Right to select between 4 characters, including the Harry itself. Press any other button on controller 2 to enable the supporting character. All other characters, except Harry will be CPU controlled, if Harry is selected, the controls will be synchronized with the controller 1 input, so two Harry's will be do the same moves.

Hatris

All versions:

(UNI) Harder mode (added 04.06.11):
At the title screen hold Down then press Start. Shop mode will be "SHOP Bx" instead of "SHOP Ax" for the Japanese version.

(BUR) GameGenie (added 04.06.11):
GAEKLKGK (for the US version)
GEXGPUGK (for the Japanese version)
-Re-enables SRAM checking routine allowing you to save your records in hi-score table after reset. With battery-backed RAM this feature will allow you to save hi-score table after console power down.

Japanese version:

(UNI) Credits (added 04.06.11):
At the title screen press Left + B + Select.

(BUR) GameGenie (added 04.06.11):
XTEAUZAV-Re-enables text typing sound while displaying credits. In the final version, this sound was disabled at all and all credit names displayed silently.

Heavy Barrel

Japanese version:

(FIX) Level select (added 06.01.08):
At the title screen hold on controller 2 one of the following codes then press Start on controller 1.
Up + Right-Level 2
Right-Level 3
Down + Right-Level 4
Down-Level 5
Down + Left-Level 6
Left-Level 7
Up + Left-Level 8

(FIX) Infinite lives (added 13.05.14):
At the title screen, hold A on controller 2, then press Start on controller 1. This cheat can be combined with the Level Select cheat as well.

Heavy Shreddin', Snowboard Challenge

(FIX) Extra 99 lives and level select (added 06.01.08):
At the title screen, hold Left + A + B and press Start. At the difficult select screen press A to switch to next race instantly.

Hector 87, Starship Hector

(BUR) Hidden text (added 22.10.08):
Some text hidden just next to credits text data:
1987,06,08 COMPLITE OYAMA SAN OTSUKARESAMA BY RURIRURI NAGATA


(BUR) GameGenie (added 22.10.08):
GEVYYKGK (for the Japanese version)
GAXYIUGK (for the US version)
-Re-enables the level select mode called "SHOOTING GAME HECTOR TEST", just press Reset.

Heisei Tensai Bakabon

(UNI) Soft reset (added 15.04.10):
During the game, hold Start, then press Select.

(BUR) Hidden text (added 08.02.13):
There is a hidden copyright text inside the ROM:
TAKASHI FUKAWA


Hell Fighter (Sachen)

(UNI) CRC test (added 13.05.14):
Hold A + B + Select + Start on controller 1, then press Reset. Continue holding these buttons, until the message with checksums for the CHR and PRG appears. For unknown reason, probably due to program or emulation bug, the CHR test check only default CHR bank, but should check the whole CHR ROM, just like the PRG ROM does. Anyway, there is no internal CRC values to campare or verify againts.

(UNI) Easter egg 1 (added 13.05.14):
After the game start, while the "Sachen" logo animation in progress, hold A + B + Select + Start on controller 1. Continue holding these buttons until the logo is stand still. Release all the buttons except Select, and while holding it press A, B, Start, A, B, Start, Up, Left, Down, Right, Start, Start, Start, Start, Start, Start, Start, Start, Start, Start, and finally press any other additional button to enable the "SACHEN" logo kanji scroller from bottom to the top of the screen.

(UNI) Easter egg 2 (added 14.05.14):
After the game start, while the "Sachen" logo animation in progress, hold A + B + Select on controller 1 and A + B on controller 2 at the same time. Continue holding these buttons until the logo is stand still. Release all the buttons except Select on controller 1, and while holding it press A, B on controller 1, A, B on controller 2 and Up, Left, Down, Right, Start, Start, Start, Start, Start, Start, Start, Start, Start, Start on controller 1 again, then press any other additional button to enable another kanji message scroller.

(UNI) Quick level restart (added 14.05.14):
During the game, hold A + B on controller 2, then press Reset to quickly restart the current level from the beginning. Note, that the default value of lives is 5 in this case and rapid fire is on.

(UNI) Extra stage select (added 14.05.14):
In the "OPTION" menu, hold A + B on controller 2 while selecting the starting level number to be able to select from all 6 levels.

Hello Kitty World

(UNI) Sound test (added 28.07.13):
Beat the game, then at the "おしまい" screen press A + B + Select + Start on controller 1. If done right, you will be able to select the music track with Up or Down, then play it by pressing A.

Hero on Devil Lands (Waixing)

(BUR) GameGenie (added 14.05.14):
XTKNKLAV-Re-enables the generic type of debug display for many of Waixing's games. Unfortunately, the fonts are removed or doesn't displayed properly, so you can't actually see the number parameters.

Hi no Tori - Houou Hen - Gaou no Bouken

(UNI) CRC test (added 24.04.07):
Hold A + B, then press Reset. If CRC is ok, a message "HINOTORI ONE" will appear, in the other hand "HINOTORI TEN" will appear.

(UNI) Extra 90 lives (added 25.11.12):
To obtain extra 90 lives, you must meet some conditions: you must hold 50 stone blocks and your score must ends with xx23450 (e.g. 0023450, 322345, etc.). Then, when the time reaches exactly 100 seconds, hold Up + Right + A + B. From now, your lives counter will be 90.

Higemaru Makaijima - Nanatsu no Shima Daibouken, Makai Island

(FIX) Debug mode (added 22.12.12):
At the title screen, hold B then press Start on controller 1 to start a new game. Game will turn into the some kind of debug mode leftover from the development stage. Basicly this will lead to disable some collisions, so you at least will be invulnerable at any battle. Unfortunately, this will lead also to garbled game graphics. More disabled functions are available, but due to code changes they are crashes the game.
Source: ReyVGM

(GEN) Continue (added 22.12.12):
After game over, at the title screen hold Up then press Start on controller 1 to start a new game.
Source: ReyVGM

(BUR) Hidden text (added 22.12.12):
There is a hidden copyright text in ROM:
BY MASAMITSU.KOBAYASI 87/3/2
Additional, the prototype version of this game contain one more, much more detailed copyright message:
MSX ....... 1985 , FC COMMANDO 1986FC MAKAI ISLAND 1987 M.KOBAYASI S.40.3.24 BORN,THANK YOU !! NEXT GAME IS   SIDE ARMS !!


High Speed

(BUR) Hidden text (added 08.02.13):
There is a hidden copyright text inside the ROM:
 (C) COPYRIGHT 1991 RARE LTD. ENGLAND.


Highway Star, Rad Racer

Japanese version:

(UNI) Maximum speed (added 07.01.14):
During the game, hold Up while accelerate, your speed will reach maximum in 255 km/h.

All versions:

(FIX) Stage select and ending (added 07.01.14):
At the title screen, press Start to enter a car select mode, select a car then press Start again. While in demonstration mode (a message "PRESS START TO BEGIN" is displayed), press B to select the desired level, the progress bar above the speed indicator will show you the selected level. Empty progress bar means level 1, full progress bar means level 8. When done, hold Up + Right and press Start to go to the selected level. Additionally, press B more than 60 times to see the ending sequence.

Hiryuu no Ken III - 5 Nin no Ryuu Senshi

(GEN) Critical Hit:
At the last boss, hold Select + Start and choose attack. You'll deal a 250+ hit damage every time.
Source: ReyVGM

(GEN) Different Characters:
At any of the "Chapter # Push Start" screens, press Select 10 times and you'll be able to choose between any of the 5 characters.
Source: ReyVGM

(GEN) Skip Cutscenes:
While in a cutscene, hold Select + Start and press A.
Source: ReyVGM

(GEN) Secret passwords:
おしまい-Ending
おときく-Sound Test
Source: ReyVGM

(BUR) GameGenie (added 17.04.14):
GAXTYYSA-Re-enables the debug functions. During the game, press Start, then hold B, then press Up or Down to select location, while holding B press Select to move to selected location. Additionally, on controller 2, press A to hold the game, press B to enable the game delay, now press any other button to enable according bits of the delay variable, press all buttons once on controller 2 to get maximum delay, press one more time to disable delay.

Hiryuu no Ken Special - Fighting Wars

(BUR) Hidden text (added 09.12.15):
There is some hidden name in the ROM at 0x1010, just before the music data:
H.Kanagawa


Hissatsu Doujou Yaburi

(GEN) Sound test:
At the title screen, press A + B and the cursor will disappear. Now, use B to cycle through the sounds and A to cycle through the music.
Source: ReyVGM

(UNI) Invulnerability (added 16.05.14):
Hold Up + A + B + Select, then press Reset, the game skips directly to the title screen. Now, you will be invulnerable in fighting sequences during the game.

Hissatsu Shigoto Nin

(UNI) Sound test (added 29.03.12):
At the title screen, before selecting the new game or continue, press Right 32 times.

(GEN) Ending sequence (added 29.03.12):
At the title screen, before selecting the new game or continue, press Left 19 times. Now, start a new game, after starting movie sequence ending credits will follow.
Source: ReyVGM

Hit Marmot

(UNI) Ending sequence (added 16.05.14):
At the title screen, press Right + A + B + Select + Start.

(UNI) Stage select (added 16.05.14):
At the title screen, press Left + A + B + Select + Start.

(UNI) Extra bullets (added 16.05.14):
Enter the Stage Select mode, then press Up + Right + A + B + Select + Start. Now you can have 99 bullets instead of 30 in normal game mode.

Hit the Ice

(UNI) Sound test:
At the title screen, the after message "PUSH START BUTTON" appears, quickly press A, Up, B, A, Right, B, A, Down, B, A, Left, B.

(UNI) Easter egg (added 16.05.14):
During the game, when beated any of the random encounter hockey battles, on the victory sequence press A + B + Start on Controller 3, connected to the 4-Score adaptor, to restart animation sequence. You could watch the girls walking to the winners unlimited amount of times with this code.

Hokkaidou Rensa Satsujin - Ohotsuku ni Kiyu

(GEN) Continue:
After receiving the password, you'll get a screen that says "To Be Continued", to avoid having to reset the game to get out of it, just hold A + Select on controller 1 and press Up on controller 2.
Source: ReyVGM

(GEN) End The Card Game:
Whenever you are in a Blackjack match, hold B on controller 2 before dealing the cards to end the game after one match.
Source: ReyVGM

Hokuto no Ken

(UNI) Player 2 reverse controls (added 06.12.08):
At the title screen, shout to the microphone on controller 2 10 times, then hold Down + Left + A + B on controller 2 and press Start on controller 1. Start a two players game. If done right, the second player's movement controls will be reversed. This strange cheat is exactly the same as in another game by the same developer: "Nagagutsu wo Haita Neko".

(BUR) Hidden text (added 06.12.08):
There is some hidden copyright message in ROM:
Hokuto no ken copyright Tue.24.Jun.1986 Shouei system
 Pic. by K.Suzuki M.Higa
 Prg. by M.Yoshihara Y.Kishimoto Y.Sakakura
 BGM by M.Hara
Trading by H.Tokuyama
OCHAKUMI by K.Yoshino N.Satoh M.Takano
 Voice data special thanks to NINTENDO WE ARE TIRED.


Hokuto no Ken 2 - Seikimatsu Kyuuseishu Densetsu, Fist of the North Star

All versions:

(BUR) GameGenie (added 15.04.14):
LEEKIAAA+EEOPIAAA (for the Japanese version)
LEEKIAAA+EEOPTAAA (for the US version)
-Re-enables two title screen cheats. At the title screen, hold A, then press Start to obtain a maximum powerup. Additionally, press Right a number of times corresponding to the desired level number, then hold B and press Start to begin with selected leve. Both cheats can be combined.

Japanese version:

(FIX) Continue:
After the game over screen at the title screen, hold Down then press Start to continue from the last stage. Additionally, it can be used to move directly to the 4th level because of program bug. Just start a "VS PLAYER" game mode, die and then do the Continue trick.
Source: ReyVGM

(BUR) Unused cheat (added 06.12.08):
This cheat is a leftover from the first Japanese part of this game. Althought the two-player mode isn't supported in this part, all the code regarding microphone shout and player 2 controls are left and working, but unfortunately does nothing.

(BUR) Hidden text (added 08.07.09):
There is some hidden copyright message inside the ROM:
PRG by Y.Saka & M.Yoshihara / CHR by Ken.S & M.Higa
Also, the RESET routine in this game uses string
MASAHIRO
to check if game was soft or hard reset and in addition test bank switching with comparing two strings in bank 7 and bank 4. If test fails, game will hang on reset routine.

Holy Diver

(UNI) Extra lives (added 30.07.13):
Start a new game, in the beginning jump right to the top of the three. Press Start on controller 1 to pause the game, hold A + B on controller 2, then press Start on controller 1 again. The lives counter will be increased each time you doing this. It is only works on the specified height coordinates, there is a lot of places with such coordinates on the level, just try and find it.

Home Alone

(GEN) Secret message (added 01.10.09):
At the copyright text screen press on controller 1 or controller 2 Up + Left + A + B + Select once then Down + Right + A + B + Start, "HOME ALONE EXTRA SPECIAL" screen will appears. This extra copyright screen available in all Bethesda's games with the same code.

Home Alone 2 - Lost in New York

(UNI) Secret message (added 14.02.14):
Go to the 16th floor of the hotel, grab the invincibility item from the first room and enter the second room while still invincible. Make sure you have no ammo for the dart gun and press Up on the closet door. Pressing Start during the message will put you back at the beginning of level 1, but with all the items you had collected up to that point. After the message finishes, you will be warped to the next stage.
Source: tcrf.net

(UNI) Secret items (added 17.06.16):
In Level 1, in Lobby, after the Gift Shop, there is a lamp in the middle between the jumping couch and the couch to the left of it. Jump above it using the jumping couch to reveal two special items with names "BECKY" and "CHRIS". Each gives to you 1000 score points. Similar items can be found literally in every game by the same developer.

Home Run Nighter '90 - The Pennant League

(FIX) See the whole stadium (added 18.05.14):
At the title screen, select one of three stadiums by highlighting one of three menu items, then press A + B + Select + Start.
Source: ReyVGM

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

Honoo no Doukyuuji - Dodge Danpei

(UNI) Secret passwords (added 17.06.09):
HEBE-Cut scene test mode. You can select one of game cut scenes to play.

Honoo no Doukyuuji - Dodge Danpei 2

(UNI) Memory dump (added 30.07.13):
Any time during the game, press Up + Down + Left + Right + A + B + Select + Start both on controller 1 and controller 2 at the same time. This will dump the $0000-$01FF and $0400-$04FF areas to the SRAM and go to the infinite loop. Probably was used at the development stage to dump internal variables.

(UNI) SRAM clear (added 30.07.13):
Hold Left + Right on controller 2, then press Reset. The screen will be pure white. It will initialise the SRAM and then wait for the memory dump keys or do nothing.

(UNI) SRAM test (added 30.07.13):
Hold Up + Down on controller 2, then press Reset. The screen will be blue if SRAM is initialized with the first one cheat. Otherwise it will be red. Then programm will wait for the memory dump keys or do nothing.

Hook

(UNI) Credits and free map:
Press Right, Up, Up, Down, Down, Right, Left, Up at the title screen. A sound will confirm correct code entry. Now press Select to view the ending credits or start a new game and select destination on map, then press B to go there immediately without level completion.

(UNI) Soft reset (added 19.05.14):
Any time during the game, on controller 2 press Left + Select + Start to reset the game.

(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


Hoshi no Kirby - Yume no Izumi no Monogatari, Kirby's Adventure

(UNI) Soft reset (added 01.08.13):
Hold A + B + Select + Start during the game.

Hoshi o Miru Hito

(BUR) Hidden text (added 23.11.08):
There is a hidden copyright text in ROM:
1987ANOTHERltd.1987. Another Ltd.


Hototogisu

(UNI) Disable music (added 20.05.14):
Hold A + B on controller 1, then press Reset. This will turn off the background music during the game.

(UNI) Skip to the intro (added 20.05.14):
Hold Left + A + Select + Start on controller 1, then press Reset, then release all the buttons. This will skips directly to the intro sequence.

(UNI) Repeat demo sequence (added 03.11.08):
At the title screen, when music is playing, wait for the demo sequence starts and over. When at the title screen again and the copyright logo appears on screen for a couple of seconds, quickly press Up, Up, Down, Down, Left, Right, Left, Right, B, A on controller 1 and demo sequence will start instatnly.

Hottaaman no Chitei Tanken

(UNI) Cheat commands (added 27.12.13):
At the title screen, enter one of the following cheat sequences, wait for the title screen start moving and press Start. After entering any cheat, you'll be returned to the title screen again. You can enter as many codes as you like, all effects are combined and will work at the same time. To start a new game with all enabled codes, just press Start while title screen is stand still and music is playing.
ALARBDUSU-Command menu. Show the complete cheats list with it's description. There is total 14 cheats available.
UALBRRAUD-Continue play.
LBRUADSRB-Stage Time Limit x2.
BRSALBDUD-No Jiminko enemy.
RDLASRAUB-No Magma.
DSRDAULBA-x2 Score.
BUDSADRBB-Laser Powerup.
UUBARBRAL-All items Equipped.
ALDRLBUSU-Bomb Powerup.
LBUDBLSRD-Infinite Bombs.
DBARSLRUD-Hottaaman Powerup.
RSDUBARRL-Hotsutaman +15 People.
BSRBLAUDL-Stage select.
URSDUADBL-???. If any of cheats 1-5 and 9-12 are enabled, you coulnd't see a password for the current level, this cheat seems removing that limitation.

Hu Lu Jin Gang (Nanjing, NJ039)

(UNI) Secret message (added 21.05.14):
During the game, while in conversation mode, hold Up + Select + Start on controller 1 and skip with A to the end of the dialog. The copyrigh string will be displayed in the dialog box, but the proper graphics or text was removed from this version of the game. This cheat can be found in a couple of Nanjing games on the same engine.

Huan Shi Lu (Nanjing, NJ034)

(UNI) Secret message (added 21.05.14):
During the game, while in conversation mode, hold Up + Select + Start on controller 1 and skip with A to the end of the dialog. The copyrigh string will be displayed in the dialog box, but the proper graphics or text was removed from this version of the game. This cheat can be found in a couple of Nanjing games on the same engine.

Huang Di

(UNI) Cheat mode (added 13.07.09):
At the "ASDER" logo, hold Down + Left + B + Select on controller 1, palette flashing will change. This will enable some debug features during the game. First of all, it's enabling "permanent flight" effect, when you can jump as high as you wish, just by pressing the "jump" button. Additionally, during the game press Up + B to increase your power state, which gives you more powerful weapon and an extra hit points.

Huang Jin Tai Yang (Nanjing)

(UNI) Secret message (added 21.05.14):
During the game, while in conversation mode, hold Up + Select + Start on controller 1 and skip with A to the end of the dialog. The copyrigh string will be displayed in the dialog box. This cheat can be found in a couple of Nanjing games on the same engine.

Hudson Hawk

All versions:

(UNI) Infinite lives:
At the title screen, press Up, Up, Left, Left, Right, Left, Down, Select, Select. The screen flashes and sound will confirm correct code entry.
Thanks to Kitsune for corrections.

(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


Japanese version:

(BUR) Hidden text (added 13.07.09):
There is a hidden version text in ROM:
* HUDSON  HAWK *
* SENT 30/9/91 *
* (TRANS) V2.4 *


(BUR) GameGenie (added 14.07.09):
AESAYEZE-Exchange the copyright screen text with the "Sony Imagesoft" logo screen unused in the Japanese version.
LESAYEZE-Exchange the copyright screen text with the "Ocean" logo screen unused in the Japanese version.

European version:

(BUR) Hidden text (added 13.07.09):
There is a hidden version text in ROM:
* HUDSON  HAWK *
* SENT 4/10/91 *
*  PAL  V0.1   *


(BUR) GameGenie (added 14.07.09):
AESEPELE-Exchange the "Ocean" logo with the "Sony Imagesoft" logo unused in the US version.

US version:

(BUR) Hidden text (added 13.07.09):
There is a hidden version text in ROM:
* HUDSON  HAWK *
*   28/10/91   *
* NEW STARTUP  *


(BUR) GameGenie (added 14.07.09):
LESEPEAE-Exchange the "Sony Imagesoft" logo with the "Ocean" logo unused in the US version.

Hudson's Adventure Island, Takahashi Meijin no Bouken Shima

(GEN) Continue (added 15.05.16):
First, collect the Hudson's bee at the end of level 1-1 inside the hidden egg. Now, at any Game Over or at the title screen, hold any D-Pad button before press Start to continue from the last played leve.

(BUR) Hidden text (added 14.07.09):
The RESET routine in this game uses string
HECTOR
to check if game was soft or hard reset.

Hudson's Adventure Island II, Takahashi Meijin no Bouken Shima II

(GEN) Level select:
At the title screen, wait until Higgins is hit by the coconut, then press Right, Left, Right, Left, A, B, A, B.

(GEN) Continue with all items (added 05.06.16):
Collect the Hudson's bee in one of hidden eggs during the game and you'll be able to keep all items while continuing. Just hold one of the D-Pad buttons, then use the "CONTINUE" option at the title screen.

(BUR) GameGenie:
PPSZXXPE-Enable full featured Debug mode, tests everything in the game.
Source: BMF54123

Hudson's Adventure Island III, Takahashi Meijin no Bouken Shima III

(GEN) Level select:
At the title screen, press Down, Up, Left, Right, B, A, B, A.

Huge Insect

(UNI) Extra live (added 10.04.10):
Pause the game, press Up + Right + A + Select to increase lives counter by 1.

Hunt for Red October, The

(GEN) Double points:
Pause the game, press A, B, B, A, Right, Down, Up, Left, Left. The bottom of the screen will turn green. This code can only be used once per game.

(FIX) All weapons (added 06.01.08):
Pause the game, press A, B, Select, A, B, Select, A, B, Select, A, B, Select, A, B, Select, A, B, B, A. The bottom of the screen will turn green. This code can only be used once per game.

(GEN) Level skip:
Pause the game, press A, B, Select, Right, Left, Left, Right, Select, B, A, B, B, A. The level skips immediately. This code can only be used once per game.

(UNI) Invulnerability (added 06.01.08):
Pause the game, press Up, Down, Left, Right, Up, Down, Left, Right, Up, Down, Left, Right, Up, Down, Left, Right, A, A, A, B, B, B, Select, Select, Select, Right, Right, Right, Up, Up, Up, Down, Down, Down, Left, Left, Left, A, B, B, A. The bottom of the screen will turn green. This code can only be used once per game.

(GEN) Instant stop:
Pause the game, press Up, Down, Left, Right, Select. The bottom of the screen will turn green. This cheat triggers on/off each time you enter it.

(GEN) Slow automatic scrolling:
Pause the game, press Up, Down, Left, Right, Up, Down, Left, Right, Up, Down, Left, Right, A, B, B, A. The bottom of the screen will turn green. This cheat triggers on/off each time you enter it.

(GEN) Disable automatic scrolling:
Pause the game, press Up, Up, Down, Down, Left, Left, Right, Right. The bottom of the screen will turn green. This cheat triggers on/off each time you enter it.

(UNI) Music toggle (added 21.05.14):
Pause the game, press Select. The bottom of the screen will turn green for the REV0 version and won't change for the REV1 and European versions. Also the REV0 version only disables the music and doesn't allow to enable it back, but in the REV1 and European versions this was fixed and you can toggle the background music on/off any time.

(BUR) GameGenie (added 06.01.08):
AVVLVKUK (for the REV0 version)
XPEUUISY (for the REV1 and European versions)
-Replace the Music Toggle cheat with dummy cheat, which only turn the bottom of the screen in white.
ANVLVKUG (for the REV0 version)
XPEUUISN (for the REV1 and European versions)
-Replace the Music Toggle cheat with an Extra 99 lives cheat, which can be used once per game.

HVC Kensa Cassette Controller Test

(UNI) Hidden game (added 05.10.12):
Hold Down + B on controller 2, then press Reset. Press the button which marked by the program as fast as possible. Try to press all correct buttons.

Hydlide, Hydlide Special

Normal version:

(BUR) Hidden text (added 04.11.08):
The RESET routine in this game uses following text to check if game was soft or hard reset.
HYDLIDE
(C)1986 T&E SOFT
Programed by
      EIJI KATO
'85.11.13 - 1.10
 V1.0D '89. 1.12


Special version:

(BUR) Hidden text (added 04.11.08):
The RESET routine in this game uses following text to check if game was soft or hard reset.
 HYDLIDE SPECIAL
(C)1986 T&E SOFT
Programed by
     EIJI KATO
'85.11.13 - 1.10
Produced by
     TOEMI LAND


Hydlide 3 - Yami Kara no Houmonsha

(UNI) Sound test (added 04.11.08):
First you must complete the game. When the title screen appears again, select the "CONTINUE" option from the title menu and return to the Cemetery South-East of the game's starting point. You should be at least 7th level or should have INTELLECT at least 50th level to open the hidden passage leading to the Hidden Village. Just step before the grave in 5th column from left, and 2nd row from bottom. The secret passage will open. Enter the Hidden Village and head to the west, then step under the roof of HANGAR to the left from the INN. Menu with music titles will appear. Press any button to cycle through compositions, press B to exit.

Hyokkori Hyoutan Shima - Nazo no Kaizokusen

(FIX) Sound test (added 22.05.14):
This is a leftover from the development stage. Go to the password screen and on controller 2 press A to play music or sound and B to stop it. To select the sounds, change first two characters from the password string using the Up or Down on controller 1. The sound number can be calculated with equation 10*x+y-48, where, x - the first character from あ to た represents the valid numbers from 0 to 15, y - the second character represents the numbers from 0 to 64. Maximum sound index is 27. For example, enter the first two letters as "おけ", this will be first music track (index 10*4+8-48 is zero). Then, select the second character from the password string, press Down up to 27 times (the last valid letter is や). The first 11 numbers will be the songs, the next 17 are sound effects. The game will likely crash if you select more than this.
Source: ReyVGM

(GEN) Level skip:
During the game, in the puzzle/action levels, press Up + B on controller 2 to complete the current level instantly.
Source: ReyVGM

(BUR) GameGenie (added 22.05.14):
ELXIZTAZ-Enables the 18 disabled debug passwords to additional 18 stages of the game. Just enter the first letter of the password as a character between あ and つ.

Hyper Olympic, Hyper Sports, Hyper Olympic Genteiban!, Track & Field, Track & Field in Barcelona

(BUR) Hidden text (added 26.11.08):
There are hidden version strings can be found inside every different ROM of that game:
RC800 1,0 850325
-for the Japanese version (Olympic)
RC800 X,0 850919
-for the Japanese version (Olympic Genteiban!)
RC806 1,0 850601s
-for the Japanese version (Sports)
RD001 1,0 861220
-for the US version
MSTR911014
-for the European version

 

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