Stingray

Win the Pawn, Knight and Bishop tracks under the expert difficulty setting

In-game reset

Press Select + Start + A + B during game play

Demonstration mode

Press Select at the title screen

Delete saved games

Hold L + R and turn on the Game Boy Advance. Select "Yes" at the prompt to delete your game saves

Dirty Joker

Win the Pawn, Knight and Bishop tracks under the standard difficulty setting

Master difficulty setting

Win the Pawn, Knight, or Bishop series under expert difficulty level in grand prix mode to unlock the master difficulty for that series