Enter the Options screen and hold F1. Enter the following with the arrow keys (this may crash the game). To avoid this, start a new game and enter the codes at the in-game options screen.
Code Effect Up - Up - Up - Up All cards (after beating the game)
Left - Right - Left - Right All character costumes (after beating the game)
Up - Down - Up - Down All vehicles (after getting 100%)
Down - Down - Down - Up Different camera angles
Down - Down - Right - Left Drive a toy car
Right - Right - Right - Right Higher acceleration
Right - Up - Right - Up Invulnerability
Left - Left - Left - Left No top speed
Right - Right - Left - Left One hit destruction
Left - Left - Left - Right Press horn to jump
Right - Right - Down - Left Speedometer
