I can tell you that the one emu that I have tried for the Neo Geo MVS system made the whole thing worth buying. If you like games like Metal Slug, King of Fighters, Fatal Fury, and Double Dragon, the GP2X is a dream come true. I owned an original Neo Geo MVS console, and I can honestly tell you that with the TV out feature, I can't see any difference at all between the original console and the GP2X. I haven't tried any of the other arcade emu's, but I'm sure that they work just as good. I'd say that if you like these kinds of games you can't go wrong buying a GP2X. H.G.