A game that's only about Nightwing, Batgirl, or Catwoman will not work. They're just street fighters, they're too lame with nothing special really. Too similar to Batman.However, Green Arrow would be awesome, you'd combine arrows, bows, and acrobatics to traverse.A Wonder Woman game would just be a fighting game with flight and a lasso. Yes, they might make creative use of these abilities, but an awesome rouge cast (instead of generic war characters), like a mad inventor who has a gadget for everything, it's not a good idea.Flash is difficult. He fluctuates on CV.Green Lantern would have strange but creative space mechanics.Superman? Not a chance if it's by Montreal.