Unlock Four bagger
Kill four worms in one shot

Unlock Three bagger
Kill three worms in one shot

Unlock Bronze damage
Get 25 000 tatal damage throughout the game

Unlock Body count
Get 500 kills throughout the game

Unlock Big blast
Get 500 damage in one shot

Unlock Barrel buster
Destroy 500 barrels (this accumulates throughout the game)

Unlock Animal lover
Get 200 animal kills (this accumulates throughout the game)

Unlock Magic bullet
Kill three people with a shotgun in one turn

Unlock Silver damage
Get 50 000 damage throughout the game

Unlock Gold damage
Get 100 00 damage throughout the game

Unlock Greedy worm
Collect 500 crates throughout the game

Unlock Hot foot
Dodge 500 mines throughout the game

Unlock Rocketeer
Use 2000 jetpack fuel

Unlock The beast within
Kill three people with one animal

Unlock Weapon specialist
Get 8000 damage with a bazooka throughout the game

Unlock Queen of sheeba
Complete missions 16-20

Unlock Boggy the kid
Complete missions 11-15

Unlock Royal knight
Complete missions 6-10

Unlock Hard hat
Complete missions 1-5

Unlock Caveworm
Complete missions 21-25

Unlock Professor
Complete story mode

Unlock Cyborg
Get all fifteen trophies

Unlock Alien
Complete story mode with time bonuses

Unlock Dino
Complete all non-deathmatch challenges faster than team 17

Unlock Wormenstein
Complete all deathmatch challenges faster than team 17

Unlock Story mode maps
You will unlock one map per level

Unlock Challenges maps
Defeat the team 17 times, again you will get one map per level

Unlock Holy hand grenade
Buy the "holy grail" weapon scheme

Unlock Bubble Trouble
Buy the "darksider" weapon scheme

Unlock Inflatable scouser
Buy the "it's a mystery" weapon scheme

Unlock Icarus potion
Buy the "mega powers" weapon scheme

Escape From Tree Rex: Easter Egg:
In story mission, jet pack to the crate with bazooka x2 in it. Shoot into t. Rex's mouth to get the Easter Egg. Collect the jewels to get the Easter Egg. Once you complete the level you will be awarded with 1,000 coins.

Carpet Capers: Easter Egg:
In story mode, there is a tower with an enemy called Egg on it. Parachute down to the bottom of that tower where there is a hole. Collect the jewels to get the Easter Egg. Once you complete the level you will be awarded with 1,000 coins