Nice concept and well executed, I can only guess that skilled players can get an insane score. I surely didn't. :o As far as I understood it you basically have to stay in motion and spin around, unfortunately that tires me mouse arm quickly. The in-game introduction was very helpful, I just was too slow to read because I got distracted, so a simple "click to continue" would be most welcome. The visuals are all right, just the style of the arena's borders don't seem to fit in. Sound effects could add some value, the music feels too calm for my taste.