I'll be back
How to beat the challenge
The easiest way of completing this challenge is using the Warlock class. The Warlock summons and upgrades demons. When at least one demon reaches its final stage, the warlock is granted an extra life. This grants players that use this class multiple extra lives.
Alternatively, players can play in multiplayer mode and get revived by a friend.
Unlocks male and female Cyborg face.