Taikyoku Mahjong: Net de Ron!

Taikyoku Mahjong: Net de Ron!
Developer: Arika Publisher: Arika Platform: PlayStation 2 Released in JP: December 20, 2001 This game has debugging material. This game has a hidden sound test.

Debug Menu

Applying the below code then pressing L3 while in the main story mode will change into a debug screen.

Press L3 For Debug Menu
D05F65B2 0000FFFD
006ED4E0 0000000?

? =

2 Game selector?
3 Basic menu - doesn't work?
4 Save / Load menu
6 BGM test
7 SFX test
8 Voice test

The first screen appears to be a game selector which likely isn't executed properly as it will corrupt graphics. Second seems to be a basic Start and Load menu which doesn't seem to start any game. Third is a save and load menu, while the rest of the screens are a BGM, SFX, and voice test screens.

(Source: Original TCRF research)