MUGEN is a term used for 2D Japanese fighting game engine. MUGEN allows you to take characters from Capcom games such as Street Fighter, Captain Commando, and Pheonix Wright and use them in a new platform. MUGEN allows you to control more of how your character behaves, and lets characters from different games interact within the same realm. With MUGEN player one could choose Babyhead (Captain
. Commando), while player two could decide to go with Poison (Final Fight). Browse through this site for Mugen Character makers and more: http://rapidlibrary.com/index.php?q=mugen+capcom+character.