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

Effect 						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 multi-player 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  

Home runs:
Find an enemy worm standing fairly close to the edge of the level. Use the baseball
bat to hit him into the water to get a "home run" complete with baseball bat cracking
sound, baseball message (like "It's Outta Here", or "Bases Loaded"), and organ
music.

Bonus Scheme 1:
Complete all training modes with at least a Bronze rank to unlock "Bonus Scheme 1"
in multi-player mode. 

Hint: Cool As Ice level:
The ice mission near the start is easier than it looks. Collect as many crates as
possible without using any utilities, then use the jet pack to get up to the next section
near the guard. Collect all the crates there and stand on the polar bear's head. Point
the flame thrower at a spot just to the left of the guard, and fire. You should get through
the barrier protecting him, and the flames should send him into the water.

Walk forward until you get both the uzis, then jet pack over onto the polar bear. Grab
the battle axe and shoot the next closest crate with the uzi, standing back to avoid
damage, to blow a hole giving you access the area where the Guard worm is. Use
your other jetpack to go behind him then blast him into the water with your other uzi.

Hint: Super Sheep Racing:
If you have collected a crate at the very left of the level, and the next crate appears at
the very right, deliberately crash or detonate your current sheep and set off a new one.
This will save time.

Hint: Desperation attack:
If you are almost dead and a lot of worms are nearby, use the Banana Bomb to blow
them all up.