Mazu Kan: Two Player Invisible Fighting Game
I still don't get what this is, but you should totally buy it... ;)
From Think Geek for $50:
All superheroes and superheroines have to find a place to hone their fighting skills. Many times these places are high tech installations full of traps and tests to push the hero or heroine to the edge of their ability. A true superperson will be able to confront…