Cheat mode
At the title screen, hold Z and press A, B, R, A(2), B, R, A to unlock all selections in the Puzzle University.

High speed marathon mode
At the title screen, hold Z and press B, A, L(2) to be able set the starting speed in marathon mode to a maximum of 99. Alternately, score at least ten thousand points in the time zone.

Bonus trainers
At the trainer selection screen, hold L + R + Z on controller one and two to unlock the trainers marked by a "?". Alternately, successfully complete the Spa Service game.

Mewtwo's stage
At the trainer selection screen, hold Z and press B, Up, L, B, A, Start, A, Up, R to start the game in Mewtwo's stage. Player one will be Ash, player two will be Mewtwo. Alternately, successfully complete the game on the S-Hard difficulty setting

V-Hard difficulty setting
At the difficulty selection screen, hold Z and press L(2), A, B to unlock the V-Hard difficulty setting. Alternately, successfully complete the game on the Hard difficulty setting.

S-Hard difficulty setting
At the difficulty selection screen, hold Z and press R, L, A, B to unlock the S-Hard difficulty setting. Alternately, successfully complete the game on the V-Hard difficulty setting.

Taunt opponent
Select any two player game mode. Have one player select a character, then repeatedly press A.