If you haven't picked up Batman: Arkham Asylum yet, you might want to hold off for a couple of extra months. Square Enix-Eidos has just announced that the Game of the Year edition of the acclaimed super hero action game will ship to the US in May (the Game of the Year edition is already announced for a UK release in late Match).

In addition to the original game developed by Rocksteady Studios, the Game of the Year edition will add four new challenge maps. It will also come with 3D gaming support via TriOviz. As we reported last week, their 3D method revolves around putting a software wrapper around the game which enables 3D gaming without the need for special monitors. The game will come with two 3D glasses.