For info:

http://en.wikipedia.org/wiki/X-Men_(1992_video_game)

Instructions: 1-) Install Xmen.Arcade.NPUB30320.Install.pkg 2-) Install Xmen.Arcade.NPUB30320.Crack.pkg (OR) X-men-NPUB30320_allcrk.pkg (whatever works with your system; the second one works with Rogero 4.55 CFW).

Enjoy!