Mirrored Levels
After beating Drek, go to the Goodies screen and perform these moves to unlock the cheat: Flip Left, Flip Left, Flip Left, Flip Left, 3-Hit Wrench Combo, Hyper Strike, Double Flip Right, Flip Right, Flip Right, Double Jump, Full Second Crouch.

Big Head Mode (Ratchet)
After beating Drek, go to the Goodies screen and perform these moves to unlock the cheat: Flip Back, Flip Back, Flip Back, Full Second Crouch, Stretch Jump, Full Second Glide

Big Head Mode (Enemies)
After beating Drek, go to the Goodies screen and perform these moves to unlock the cheat: Stretch Jump, Flip Back, Flip Back, Flip Back, Stretch Jump, Flip Back, Flip Back, Flip Back, Stretch Jump, Flip Back, Flip Back, Flip Back, Full Second Crouch.

Big Head Mode (Non-Player Characters)
After beating Drek, go to the Goodies screen and perform these moves to unlock the cheat: Flip Left, Flip Right, Flip Back, Flip Back, Comet-Strike, Double Jump, Comet-Strike, Hyper-Strike.

Big Head Mode (Clank)
After beating Drek, go to the Goodies screen and perform these moves to unlock the cheat: Flip Back, Hyper-Strike, Comet-Strike, Double Jump, Hyper-Strike, Flip Left, Flip Right, Full Second Crouch.

Health at Max Gives Temporary Invinicbility
After beating Drek, go to the Goodies screen and perform these moves to unlock the cheat: Comet-Strike (4), Flip Back, Full Second Crouch, Flip Back, Full Second Crouch, Comet-Strike (4).

More Bolts
To get more bolts, morph-o-ray an enemy, then use the suck cannon to get a few more bolts than normal.