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Tiny Toon Adventures

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Title Screen

Tiny Toon Adventures

Developer: Konami
Publisher: Konami
Platform: NES
Released in JP: December 20, 1991
Released in US: December 1991
Released in EU: October 22, 1992


DevTextIcon.png This game has hidden development-related text.
LevelSelectIcon.png This game has a hidden level select.
PiracyIcon.png This game has anti-piracy features.


Tiny Toon Adventures is an NES game based on the 1990s cartoon.

Stage Select and Player No Damage

You heard the man. Sufferin' Succotash! No wait, that was the other one...

All versions of the game feature a simple stage select cheat, accessed by pressing A, A, A, B, B, B, Select, Select, Select, A, Start at the title screen. Choose a level by pressing Up or Down, then press Start.

However, the Japanese version features two stage select cheats; the second one is accessed with Up, Right, Down, Left, Up, Right, Down, Left, B, A, Select, Select, Select, Start and has an additional "Player No Damage" option, which can be toggled by pressing Select.

Although the US and European versions normally have this option disabled, you can enable it by using the Game Genie code OESGKTPA (US) or OAXKVYPA (Europe).

Build Dates

An ID string listing the build version and date can be found at the end of the PRG ROM:

MAST910809

MAST means it's the "master" version, and the numbers represent the date. As a result, we can tell that this build was compiled on August 9, 1991.

Anti-Piracy

As with most games Konami published in the '90s, Tiny Toon Adventures has a copy-protection routine. At the start of the game, the partial CHR ROM checksum is calculated to ensure its consistency (for CHR banks $38-$3B, sum total of four 256-byte blocks at $0000, $0500, $0B80, and $0D00, which contain the graphics for the Konami logo and fonts for the copyright string), and a flag is clear if there's a consistency failure.

If the flag is clear, completing the final level will cause the game to loop back to the first level instead of playing the ending sequence. However, if the flag is still set at the time of the final check (CHR test has passed or skipped), there is an additional summing of the first protection routine code in the PRG ROM. If this test is passed as well, then program will continue its normal operation or else do a loop back to the first level as well.