Crash Bash Cheats

Cheat: Unlimited Health
Pause the game and enter: UP, UP, DOWN, CIRCLE, SQUARE, L1, R1

Cheat: Level Select
From Warp Room One, enter: TRIANGLE, CIRCLE, LEFT, LEFT, SQUARE + R1, TRIANGLE + R2, START, SELECT, CIRCLE, X, X

Spyro 3 Demo
At the Title screen you can press:

L1, R1, square and press start

Unlockable: Dantes Dash
You must get all 27 Trophies. or complete every level in the game.