Koto Battle: Tengai no Moribito

Koto Battle: Tengai no Moribito
Developer: AlphaDream Publisher: AlphaDream Platform: Game Boy Color Released in JP: March 9, 2001 This game has hidden developer credits. This game has hidden development-related text. This game has debugging material.

Koto Battle: Tengai no Moribito is AlphaDream (best known for the Mario & Luigi series)'s very first game. The game is about a red-haired boy and his dog Kanae who protects the land of Tengai by fighting in kotodama card battles.

Debug Menu

This needs some investigation. Discuss ideas and findings on the talk page. Specifically: Properly bringing up the menu

Code to bring up the graphics for the menu is at 7e:4573. It's probably possible to access the menu as well.

For now, the graphics on the menu can be forced with the following Game Genie codes. Enter the sound test and try to change the BGM (only works with right on the D-Pad). The debug menu will very briefly appear.

C98-C3A-E6A
458-C2A-E6A
738-C1A-E6A
CD8-C0A-E6A
218-BFA-E6A
EA8-BDA-E6A
8A8-BCA-E6A
E08-BBA-E6A
7E8-BAA-E6A
3E8-B9A-E6A
584-52A-80D
B94-51A-7F6
CD4-50A-4C1

デバッグメインメニュー: Debug Main Menu
イベントのよくせい: Event Control
せんとうのよくせい: Combat Control
エンカウントテスト: Encounter Test (N)
フラッグメニューへ: Flag Menu
フィールドデータさんしょう: Field Data Reference

On the same menu, there is also what seems to be a build date and developer name.

バジョン: １２／１８·１６：００
ライト：ヨシダ·ま
ベース： １２／１８·１６：００

Version: 12/18 16:00
Write: M Yoshida
Base: 12/18 16:00

(Source: Torchickens)