Command Master

Command Master
Developer: Brain Dock Publisher: Enix Platform: Game Boy Color Released in JP: November 22, 2000 This game has debugging material. This game has a hidden sound test. This game has a hidden level select.

One of only two games to use Memory Bank Controller 7 (the other being Kirby Tilt 'n' Tumble), Command Master is a robot-style take on Pokémon, consisting of 90 different robots (called Neos) and using tilt controls to play rhythm-based minigames in order to transform your robot.

Debug Mode

Game Genie code 0F1-81F-F76 or GameShark code 010F70C3 will start the game in a fairly sophisticated TOSE debug menu offering a sound test and even an MBC7 test.

GOTO PRG

Test various events and warp to any point in the game.

SPECIAL 2 EFFECT

Tests all the special effect animations in the game.

HERO DISP

Displays all the Heroes and their statistics.

FLAG EDIT

Edits various in-game flags.

BATTLE EDIT

Edits various flags for battles.

SPECIAL DISP

Shows all 90 Neos' special move cutscenes in the game.

(Video)

SOUND TEST

Tests all the music and sounds in the game. A sound visualisation is represented in decimal on the upper-left corner.

ACTION TEST

Tests all characters' special moves in the game. You cannot return to the main debug menu.

MBC7 TEST

Probably the most interesting feature of the debug menu, here you can test the integrity of the game's MBC7 chip.

(Source: nensondubois)