Complete one of the following goals to unlock the corresponding feature, which may be enabled at the weapons or game options screen:

Result	Goal
Worms bleed when shot	Earn gold medal in Basic Training mode
Aqua sheep	Earn gold medal in Super Sheep Racing training mode
Longbow power-up	Earn gold medal in Euthanasia training mode
Shotgun power-up	Earn gold medal in Rifle Range training mode
Grenade power-up	Earn gold medal in Artillery Range training mode
All weapon crates have sheep	Earn gold medal in Crazy Crates training mode
Invincibility	Earn an Elite rank in Deathmatch mode
Laser sight	Complete mission 4
Jetpack	Complete mission 8
Fast walk	Complete mission 13
Invisibility in net games	Complete mission 16
Low gravity	Complete mission 20
Indestructible landscape	Complete mission 25
Super Banana Bomb power-up	Complete mission 33
Full Wormage game options	Gold medal and Elite rank in all