PainTown, made by kazzmir and juvinious, is an open source 2-D fighter for the Wii, Android, and PS3. This beat 'em up game is customizable and supports user created content and functionality. See below for the change log, and be sure to check out the project's page for information about how to utilize the game's features.
QUOTE: Current Features•Low CPU and GPU requirements
•Network play
•Dynamic lighting
•Joystick support
•mod/s3m/xm/it music modules
•Scripting with python
•M.U.G.E.N engine
QUOTE: Change Log 10/20/11Paintown Engine:
•A new move list dialog shows all the attack moves for a player
•Local multiplayer co-op
•Much improved joystick support
Paintown Editor:
•Re-organized the layout
•Onion skinning
•The background color of the animation window can be changed
•Additional convenience tools were added
Mugen Engine:
•Characters and stages are discovered in the background without having to modify select.def