Earn a gold medal in the following training drills to unlock the following cheat options:

Artillery Range - Grenades will be more powerful when this option is enabled.
Rifle Range - Shotgun will be more powerful when this option is enabled.
Euthanasia - The longbow will work better when this option is enabled. (Appears under Weapon Options)
Crazy Crates - All weapons crates will contain sheep when this option is enabled. (Appears under Game Options)
Basic Training - Worms will bleed when shot when this option is enabled. (Appears under Game Options next to the replay "R.")
Super Sheep Racing - Aqua sheep will be activated when this option is enabled. (Appears under Weapon Options between "Start with superweapons" and "super weapons on/off")