GMRZero

Overlord Overdone Complete Dissolution of Eternity Episode 1: Hell's Fortress in single player.

Collateral Damage Mission 3: Influence: Kill an enemy with an exploding vehicle.

PAIN in the Park Get 2,000,000 score in Abusement Park and After Hours

Training to Survive Train any skill up to +20.

Puyo King (x100,000) Popped 100,000 Puyos in completed matches

Bounty Hunter Collect all bounty cards.

Dude Abides Use "The Dude" to score 30 Strikes in Bowling

Ring Sting Heal, Burn, Curse and Freeze 6 characters at the same time in a single online game

Mechs Master Get 500 kills with the Mech
It's a Mech-a-delic freakout!

The House of Doom Find the secret exit in Dimension of the Past.

Drop the hammer Complete everything in the singleplayer game

Combo Mambo Get 15x Combo in PAINdemonium, Aftermath, Block Party and Demolition

Sandy's Room Find the secret exit in Dimension of the Machine.

A-maze-ing Mission 2: Contact: Escape the Replica Forces without killing any Heavy Armor.

I Heard Them Scream... Get 500 kills with the Tank
Tanks a lot

Survivor Earn a gold medal on any level in single player Survival.

The Year Zero Complete Dimension of the Past in single player.

Dragonslayer Complete Dissolution of Eternity Episode 2: The Corridors of Time in single player.

Vengeance Denied Complete Dimension of the Machine in single player.

Tour de Force Mission 4: Rebirth: Destroy a Powered Armor unit in under thirty seconds.

Foot Soldier Mission 1: Foxtrot 813: Complete the level on foot without an EPA.

Good Start Make it through 5 Survival Mode Waves in one session
Five Alive

Affliction Addiction Get 100,000,000 points in Downtown

Master of Both Worlds Acquired all trophies

200 Deep Attain a 200 streak in any mix on hard difficulty or above using a DJ Hero™ Turntable Controller.

Ooh, in ya face! Win a fight by flash KO in a Ranked Match with a CAF or UFC fighter.

Surviving... Get 1000 kills in Survival mode
Still on the island

The Painless Maze Complete E4M6: The Pain Maze on Nightmare without taking damage.

Miniature Replica Soldier! Crank up the 'Miniature Replica Soldier' theme song.

Purple Belt Win 30 online Ranked Matches with a CAF or UFC fighter.

Challenge Savant Completed 25 Challenges on Expert

Fill Me In Completed all fills at 60BPM or higher, or half of the fills at 140BPM or higher

Locksmith Unlock everything in the Vault.

You're Going Down! Defeat a raider with an attack during an Ultimate Dragon Change.

Papa Said Knock You Out! Win 15 online Ranked Matches with a CAF or UFC fighter by KO.

Embrace Your Destiny Complete an entire story in Career mode.

Million Point Club Earned more than 1,000,000 points in a single song

Shub's Bud Complete Quake on Nightmare in single player.

Trial Athlete I shall assimilate all and be all-powerful! Clear all Trial Mode challenges, and so can you!

Wax On! Win 15 online Ranked Matches with a CAF or UFC fighter by submission.

Constipated 100th Strike

1-800-CAKE Kill 2253 players online with at least 50 kills using each class

Scourge Done Slick Complete Scourge of Armagon on Nightmare in single player.

2 Mill Club Get "PAIN in the Park" and "D-Town Destruction"

Virtuoso Beat the Impossible Vocal Challenge

Iconoclast Oh my gosh, those Icons are so adorable! Don-chan and I gotta catch 'em all!

Cake or Death Win 100 online games

Rogue Ranger Complete Dissolution of Eternity on Nightmare in single player.

Otherworldly Complete Dimension of the Past on Nightmare in single player.

Machinehead Complete Dimension of the Machine on Nightmare in single player.