Ratchet and clank Cheats (Playstation 2)

Enemies have big head:
Stretch jump, flip back, flip back, flip back, stretch jump, flip jump, flip jump, stretch jump, flip jump, flip jump, flip jump, full 2nd crouch.

Unlock levels:
Type in the word, accassalllevels while playing the game.

To get all weapons:
jump, jump, square, triangle, X, circle, R2, R1, L2, L1.