Big Head Crash
Press Start to pause game play. Then, hold R and press Square(2), Triangle, X. Keep R held until the game is resumed. Repeat the code to disable its effect.

Shadow Crash
Press Start to pause game play. Then, hold R and press Triangle, Square, Triangle, Square, X. Keep R held until the game is resumed. Repeat the code to disable its effect.

Big Head Shadow Crash:
Press Start to pause game play. Then, hold R and press Square, Triangle, Square, Triangle. Keep R held until the game is resumed. Crash will have a giant head and become a shadow. Repeat the code to disable its effect.

 Skins:
Complete the indicated task to unlock the corresponding skin for Crash.

Battler: Jack 35 Battlers. 
Bratgirl: Defeat 130 Brat Girls. 
Doom Monkey: Defeat 500 Doom Monkeys. 
EE-Lectric: Jack 50 EE-Lectrics. 
Goar: Jack 30 Goars. 
Halloween: Complete 50% of the game. 
Koo-ala: Defeat 150 Koo-Alas. 
Magmadon: Jack 50 Magmadons. 
Ratnician: Defeat 200 Ratnicians. 
Rhinoroller: Jack 30 Rhinorollers. 
Scorporilla: Jack 15 Scorporillas. 
Shellephant: Jack 15 Shellephants. 
Sludge: Jack 50 Sludges. 
Snipe: Jack 50 Snipes. 
Spike: Jack 50 Spikes. 
Stench: Jack 50 Stenches. 
Valentine: Collect all Gold Idols. 
Voodoo Bunnie: Defeat 200 Voodoo Bunnies.