Wai Wai World 2

Wai Wai World 2: SOS! Paseri Jou
Developer: Konami Publisher: Konami Platform: NES Released in JP: January 5, 1991 This game has hidden development-related text. This game has anti-piracy features.

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Unused Tilemap

There is one unused packed tilemap, near the character selection screen packed tilemap in PRG ROM with index $05. It matches the same CHR bank setup and palette and represents an unknown "EDIT MODE", probably a debug leftover or most possible the early variation of the character selection screen itself. There is no code to access this tilemap at all, nor the presence of another debug routine.

Note, that the first icon is for the main character リックル itself ("Lickle"), and it's unused in the normal game. The fifth one is for character ビル ("Bill", from "Contra"), but it uses the wrong tileset, so it doesn't show an actual character's icon.

Build Dates

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

MSTR901023

A similar ID can be found in many other Konami games.

"MSTR" means it's the "master" version of the game, and the numbers represent the date. So, this build was compiled on October 23, 1990.

Anti-Piracy

As most games by Konami made after 1991, this game contains some simple copy protection, it checks for "©" symbol presence in PPU RAM at the title screen. If checking fails, then the game enables "HARD" difficulty mode by default from the first stage. Also, after beating level 8, you'll be warped back to the level 1 complete screen, and start from level 2 accordingly.