New Game Plus
Complete all story missions on any difficulty to unlock the New Game + option in the main menu. In New Game + all previously obtained upgrades and evolution levels will be retained, and is available for all difficulties.
Unlockable How to Unlock New Game + Complete the game on any difficulty
Contributed By: Jagglenuttz.
Unlock Insane Mode
Beat the game on any difficulty
Contributed By: 3_Play_3.
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