Spiderbat: Friend of an Asylum is a combo of Spider-Man: Friend or Foe and Batman: Arkham Asylum.
Spiderbat brings Green Joker to Rikers Asylum after defeating him. Suddenly, there is five loud "BANG!" noises, and Spiderbat is informed that five meteor shards have crashed into the asylum. The impact destroyed the control panels and freed all of the patients, as well as putting the asylum in a lockdown mode. Spiderbat, trapped in the asylum, must find all five of the meteor shards and put all the villains back where they belong.
- Green Joker
- Poison Scorpion
- Killer Rhino
- Harlequin Goblin