Animal lover:
Get 200 animal kills.
Barrel buster:
Destroy 500 barrels.
Big blast:
Get 500 damage in one shot.
Body count:
Get 500 kills throughout the game.
Boggy the kid:
Complete missions 11-15.
Bronze damage:
Get 25 000 tatal damage throughout the game.
Bubble Trouble:
Buy the "darksider" weapon scheme.
Carpet capers easter egg:
To receive the first easter egg and 1000 coins do the following. Go to the "carpet capers" level on story mode. There is a tower with an enemy called "egg" on it. Parachute down to that tower and go through a hole at the bottom of it. There you will find a jewel, get it. A message will appear saying "you found an easter egg". Now finish the level it doesn't matter if you win or lose. You now have the first easter egg and 1000 coins.
Caveworm:
Complete missions 21-25.
Challenges maps:
Defeat the team 17 times, again you will get one map per level.
Cyborg:
Get all fifteen trophies.
Destruct and Serve Easter Egg:
In the Mission "Destruct and Serve" There is a Car that looks like the Delorean of Back to the Future. Blow it up with an explosive weapon to recieve the "88 MPH" Easter Egg and 1,000 Coins.
Dino:
Complete all non-deathmatch challenges faster than team 17.
Escape from tree rex easter egg:
To get the second easter egg and 1000 coins do the following. Go to the "escape from tree rex" level on story mode. Jetpack down to a platform with a crate. Get the crate and receive two bazookas. Now shoot the mouth of the T rex not the platform in his mouth. A message will appear saying "you found an easter egg". Now finish the level it doesn't matter if you win or lose. You now have the second easter egg and 1000 coins.
Four bagger:
Kill four worms in one shot.
Gold damage:
Get 100 00 damage throughout the game.
Greedy worm:
Collect 500 crates throughout the game.
Hard hat:
Complete missions 1-5.
Holy hand grenade:
Buy the "holy grail" weapon scheme.
Hot foot:
Dodge 500 mines throughout the game.
Icarus potion:
Buy the "mega powers" weapon scheme.
Inflatable scouser:
Buy the "it's a mystery" weapon scheme.
Magic bullet:
Kill three people with a shotgun in one turn.
Nice to siege you easter egg:
To get the third easter egg and 1000 coins do the following. Go to the "nice to siege you" level on story mode. Go to where the proffesor is and go down the cliff. You should see an entrance. Go inside to find a worm dressed like a rabbit. A message will appear saying "you found an easter egg". Now finish the level it doesn't matter if you win or lose. You now have the third easter egg and 1000 coins.
Professor:
Complete story mode.
Queen of sheeba:
Complete missions 16-20.
Rocketeer:
Use 2000 jetpack fuel.
Royal knight:
Complete missions 6-10.
Silver damage:
Get 50 000 damage throughout the game.
Story mode maps:
You will unlock one map per level.
The beast within:
Kill three people with one animal.
Three bagger:
Kill three worms in one shot.
Tin can alley easter egg:
To get the fourth easter egg and 1000 coins do the following. Go to the "tin can alley" level on story mode. Look around you. Behind you there is a toilet. Shoot it. A message will appear saying "you found an easter egg". Now finish the level it doesn't matter if you win or lose. You now have the fourth easter egg and 1000 coins.
Weapon specialist:
Get 8000 damage with a bazooka throughout the game.
Wormenstein:
Complete all deathmatch challenges faster than team 17.