Majokko Mari-chan no Kisekae Monogatari

Majokko Mari-chan no Kisekae Monogatari
Developers: Unknown (likely TOSE?) Publisher: Victor Interactive Software Platforms: Game Boy, Super Game Boy, Game Boy Color Released in JP: September 3, 1999 This game has debugging material. This game has a hidden sound test. This game has a hidden level select.

Don't play Doctor with this one.

DEBUG MODE

Game Genie code 202-52F-E6E (REV 1) 202-5BF-E6E will start the game in a debug menu.

Dress Test

Allows you to test all costumes.

GAMENMODE

Allows you to test all areas and aspects of the game.

ITIJUOI-MODE

UNKNOWN

The first UNKNOWN setting starts the introduction scenario.

NAME

Takes you to the name entry screen.

OP-DEMO

Takes you to the opening demo.

OPENNING2

Takes you to the second opening.

DATA LOAD

Functionality no longer exists for this menu, presumably it would take you to a "SRAM Test" screen.

WORLD-MAP

Takes you to the world map.

MY-HOME-MAP

Takes you to "Your Home".

BGM,SE

Basic sound test. An in-game sound test already exists and is screen ID 09.

GRAGIC-MODE

This is an interesting option. Graphic Mode allows you to draw with various tools, testing out the palettes.

BG TEST

Views various CHR including scenary backdrops, objects and sprites.

(Source: nensondubois)