Crash of the Titans Codes -

Big head and Shadow Crash
To introduce a cheat, pause the game, hold the [Block/Dodge] button and press one of the following sequences. To disable a cheat, simply press the same sequence again.

[Punch], [Punch], [Kick], [Jump] - Big Head Crash.
[Kick], [Punch], [Kick], [Jump] - Shadow Crash.