Worms - Open Warfare cheats and cheat codes for Sony PSP

Refill health:
Pause the game, after that hold L + R and press Triangle, Down, X, Up
A sound will confirm correct code entry.

Unlock Challenge 1:
Finish all 3 tutorials.

Unlock Next challenge:
Finish a Challenge to unlock the next one.

Unlock Allstars ultra team:
While you are at the challenge menu, press X, X, O, X.

Refill health:
Pause game play, then hold L + R and press Y, Down, A, Up.
A sound will confirm correct code entry.