Unlock All Cars, Tracks and Modes:
Enter the name PEROPAVO.

Unlock All Cars:
Enter the name MACHOMAN.

Unlock All Ttracks:
Enter the name MORATA.

Unlock All Arcade Mode Bonuses:
Enter the name THEMASTER.

Unlock All Modes:
Enter the name PACMAN.

Challenge Mode:
Enter the name CUAQUEZ.

Trophy Mode:
Enter the name MADDUCK.

Championship in Professional Mode:
Enter the name OOOH SI.

Thanks to Revolution reader =..-Cadex-..=!