I'm a little curious about MUGEN... I'm not sure where to go to get it and I don't know how to get it. Even more importantly, how does it work? I just noticed this recently and I'd like to try it out myself. I noticed a trailer on youtube that showed KH MUGEN to be sort of like a 2-D action game with a battle system simliar to Capcom Vs. Marvel. A little more illumination please?