| Achievement | How to unlock
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| - Play through an entire chapter with 4 player co-op.
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| - Perform all grab moves, melee attacks and signature kills.
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| - Use each weapon in the game to kill an enemy.
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| - Kill 2000 enemies using melee attack or grabs.
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| - Kill 50 enemies in a single combo.
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| - Complete the Campaign on Casual difficulty.
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| - Upgrade 1 character completely.
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| - Perform all 4 fully upgraded grab moves.
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| - Take out the weapons train.
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| - Complete the Campaign on Hardcore difficulty.
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| - Upgrade all characters and signature weapons.
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| - Complete a mission on Hardcore without getting healed.
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