Superman is trapped in a prison that Batman personally made. With Joker occupying the cell right by him he is forced to find a way out! I mean who would want to live the rest of their life with a homicidal maniac. He finds out that the kryptonite encrusted doors are fake and only used to convince him it's impossible to escape. I mean how would you get THAT much kryptonite?
Thanks to Vicodinator for the original game!