I had fun with this....
1) basically download the neogeo app ...i like: http://archive.gp2x.de/cgi-bin/cfiles.cgi?0,0,0,0,5,1098
2) unzip/rar the file
3) Get a neo geo rom pack as well as the universe rom (i guess google or something for the files required) .... NB....not game roms but the...