Offers 66 per cent discount for owners of the original game.
Xbox 360 to receive Gotham City Impostors and BattleBlock Theater.
Super Turbo Championship Edition will have "20-25 per cent more content."
First week sales include Mutant Blobs Attack, are 10 per cent off.
Adds 17 challenge stages, one new area, and three new costumes.
Nacho average metroidvania.
Stylish Tex-Mex platformer splices Metroid, lucha libre.