This was interesting.
It's like Geometry Wars meets a hammer toss. I especially like the sense of balance in the mechanics - speed control is the name of the game if you want to score big.
Also, the Battle Network music fit nicely. :)
A keyboard option would be good to see, by the way; as Kuildeous said, some of us get a little "wild" with our mouse movement and adjust one's mouse sensitivity can throw one off on normal tasks if they don't reset the sensitivity aftr playing.
Good game. :D