Brearz

Oops! Yea that's a bug. Level 19, crash the game.

Survivalist Get a 5 star rating on any Hard Challenge!

The Collector Collect 15 Collectables.

Show-off Complete a multiplayer match using your personally created landscape

Siege Complete the "Light 'Em Up" Special Ops mission on any difficulty.

Too Many Too Soon Kill 3 enemies with one grenade

Downforce Completionist Gain all stars in 'Downforce'.

Mind Over Matter Complete level 50

Completionist Dominate 100% of Career by beating all the track records.

Got it Covered! Cast Wingardium Leviosa to create cover against incoming spells.

The Hardest Road Advance one of your soldiers to Colonel rank.

Lamborghini Completionist Gain all stars in 'Lamborghini'.

The creator Finish Mission 4

Suicide mission Eliminate a guard with a booby trapped clone

Midnight Completionist Gain all stars in 'Midnight'.

Deforestation Kill 15 Seeder Turrets in one game in Mayday in Regular or Hardcore difficulty.

Dose of his own medicine Kill a torturer in a duel

Pretentious Do not use any item during a mission

Centennial Acquire 100% of the Stars

All Together Now Get satellite coverage over every country on one continent.

Egg-stra XP! Complete the Egg-Stra XP challenge and then destroy a hive in the Onslaught DLC package.

Well that was educational Collect all Audio Logs

Untouchable Use only one self revive care package in the "Special Delivery" Special Ops mission.

Walk in the Park Complete the game on hard using hardcore mode

Run 'N' Gun Make a three-pointer off of a fast-break in a non-simulated game.

Horsepower Completionist Gain all stars in 'Horsepower'.

Trine 2 Hard Earn all Trophies in Trine 2

Took this thing on a test flight Complete Arcade mode with a custom made ship, at Veteran difficulty level

Greatest Tag-Team in History Defeat both Lightning Skeleton arenas in The Great Temple on Hard Mode, with 2 or more players (or as Javier Jaguar)

Best of the Best Took first place in the Wake-up Club 30 times.

In off Score off the woodwork in a match

RPM Completionist Gain all stars in 'RPM'.

Hydrogen Run Escape the large zeppelin with 40 seconds or more on the timer

Elements Completionist Gain all stars in 'Elements'.

Z-Genocider 2: Genocide Harder Kill 53,596 zombies

Stop breaking the game. Complete 10 secrets.

The architect Finish Mission 5

Go for Gold! In Onslaught, acquire seven gold chalices

Yeeee HAW! Complete the Adventure Mode on the Hard difficulty.

Pea Shooter Kill a Rhino with only a pistol in Nightfall in Regular or Hardcore difficulty.

Turbocharged Completionist Gain all the stars in 'Turbocharged'.

Cloud Nine Level 25, ride a cloud.

Conflagration Finish Mission 6

Death of Comedy Use every type of novelty weapon on a zombie

Battle Hardened Beat 5 levels without dying.

First night on the streets Complete the Unleashed Goal of one Event of the HOT WHEELS™ - Batman Expansion.

New Perspective Level 29, play as a scroll.

Backwards & Forwards Complete ALL levels in N. Verted mode

Lamborghini Icons Completionist Gain all the stars in 'Lamborghini Icons'.

Moneybags Have 15000 credits in the bank in Outbreak.