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Rokkun! Monster!!

From The Cutting Room Floor
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Title Screen

Rokkun! Monster!!

Developer: Electronics Application
Publisher: Hori
Platforms: Game Boy, Super Game Boy
Released in JP: July 1, 1994

DevTextIcon.png This game has hidden development-related text.
SoundIcon.png This game has unused sounds.
DebugIcon.png This game has debugging material.
SoundtestIcon.png This game has a hidden sound test.

A puzzle game that was only released in Japan.

Debug Menu

This game feels like Dr. Mario.

Game Genie code 0C2-14F-E6A will start you off in a Debug Menu allowing some basic features such as CHR viewing, Sprite viewing, game mode setup and a sound test.



Takes you to a game configuration setup menu where you can adjust parameters and select your Character. Press Start to begin the game with your selected settings.


Rock'n! Monster!! SGB Debug CHR TEST.png

View Character Tilesets.


Rock'n! Monster!! SGB Debug MAP DISP.png

View Stage backdrop Tilesets.


Rock'n! Monster!! SGB Debug JUKEBOX.png

Basic soundtest. A Plays your selected song and B plays your selected sound effect.

C.R.T. Test

Rock'n! Monster!! SGB Debug C.R.T. TEST.png

Tests CRT Television setup apparently which checks to see if the Super Game Boy flag is set. Basic Super Game Boy commands are sent than a palette is loaded.


Rock'n! Monster!! SGB Debug SPRITE TEST.png

Sprite Viewer. Press A to set the currently selected sprite.


Character Select brings you to the Main Menu.

(Source: Mezmorize - Finding the Debug Text)
(Source: Nensondubois - Activating the Debug Menu)

Unused Super Game Boy Sounds

To do:
Rip the sounds

Sound 1

Located at 0x0353F is the first Super Game Boy sound. Game Genie codes 3F3-10C-5D4 + 353-11C-3BA will play this unused sound during startup.

Sound 2

Located at 0x03554 is the second Super Game Boy sound. Game Genie codes 3F3-10C-5D4 + 353-11C-3BA will play this unused sound during startup.