Worms: Open Warfare Cheats

Pause game play, then hold L + R and press Y, Down, A, Up. The sound of a sword will confirm correct code entry.

Go to challenges and press: X, X, O, X and you will unlock the master team/special team called the All Stars.

Finish all 3 tutorials

Go to "Edit Schemes". Create a new scheme and give it a name. Edit the weapon sets by choosing "Edit Weapon Set" and select the weapon you want to edit and change the ammo value to the infinite sign. Do this for every weapon you want.