Denomyzer

Unconventional Potato Score an infantry kill in Hot Potato mode

None Can Stand Before You Complete the entire game on Hard difficulty.

Retire the Master Beat the City Champ.

My Kind of Crazy Finish a mission on Insane Difficulty.

Chain Smoking Reached a multiplier of x25 in Survival

Subzero Hero Obtain clothing to get a survivable temperature rating of -22°C / -7°F.

Completely Unstoppable! Remain undefeated for five consecutive 4+ player Online Multiplayer games.

Lovers' Reunion Save Annet -- Dracula X / Vampire's Kiss

Erebus Purified Earn a bronze trophy or higher for every Scar Challenge.

Wooly Wisdom Find the chamber dedicated to the humble Llama and make an offering.

Unlucky for Some Bomber - Get 13 bombs

Cold Hearted Complete No Negotiation without saving any hostages.

Blackjack Subtle Evaded vault security in Chateau Haine. ("Mark of the Assassin" downloadable content)

The Greatest Cape Stay airborne with the Hero Cape for 15 seconds.

On A Roll Complete Fast Food without losing a ball

Taster Session Try all the game modes in Single Player Race

Girl Power! With a full female outfit, win an Online Multiplayer 4+ player girl only match.

Creeper In The Woods Complete Creeper Woods on Apocalypse difficulty, without defeating any mobs.

Speed Run Clear the game in 90 minutes or less with Knives.

There Is Kindness in You Accept The Song's compromise

Trial by Fire+Lightning Beat all the Trials in the Main Campaign on Hard difficulty.

Drop The Bald Defeat Lex Luthor.

Baby Win a run with Baby

Goal Driven Complete 10 Weekly Challenges.

Amashilama Defeat Amashilama.

Uncle Time Finish the first mission for each of the 4 time trials.

Phantom in the Hull Reach level 18 in survival mode.

Collared Collect five collars during one Collar War round.

A God Falls Kill an Avatar

Trial by Fire+Lightning+Death Beat all the Trials in the Main Campaign on Bananas difficulty.

You Found Me! Discover and fight Hidden Kombatant 1 in Arcade Ladder

Vampire Win a run with Vampire

Infernal Jungle Collect 10,000 Aberrant Cinders in Nahantu Helltides.
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Whirlwind Warrior Using the Tempest Knife, defeat 10 Mountaineer mobs within 10 seconds.

5-Time Champ Win five 1000 HP Championships

Brave New World Discover the Dark Playground

The Whole Package Unlocked all game modes

Now Am I Become Death Kill 3 enemies in a single turn, with a single soldier, without explosives

Third Eye Hit 20 opponents with weapons dropped as secondary weapons

Rags To Riches Have $1 million dollars in the bank while playing in Los Angeles.

A Heroic Feat Complete the Game on HEROIC

Valley Blue clear Complete all Blue Valley maps (Any medal)

Jack of All Trades Play 10 Multiplayer games using each class.

This is Madness! Fighting is fun, huh? Well then, let's aim for 300 matches online fought, OK buddy?

The Ultimate Race Win 1 Quick Race in the AcceleDrome (not unlockable in Online and Split Screen modes).
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Indomitable Complete a tower run on Apocalypse difficulty.

Special Agent Get a bronze medal for any One Life U-Trial.

Defender Kill 25 opponents who are capturing your Control Point in Seize Ground.

Had to Do It See the title drop.

Challenge 10 Complete 10 Challenges