Upgrade all characters and signature weapons
Kill 2000 enemies using melee attack or grabs
Perform all grab moves, melee attacks and signature kills
Complete a mission on Hardcore without getting healed
Complete the Campaign on Casual difficulty
Kill 50 enemies in a single combo
Perform all 4 fully upgraded grab moves
Complete the Campaign on Hardcore difficulty
Complete chapter 4
Complete all Challenges
Complete chapter 3
Heal 50 times
Complete chapter 2
Use each weapon in the game to kill an enemy
Upgrade 1 character completely
Play through an entire chapter with 4 player co-op
Complete chapter 1
Take out the weapons train
Interrogate the sniper
Blow the factory gates!
Complete a challenge
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