Pretty addicting game, I couldn't beat a certain level, kept getting hit by the last sawblade after getting across all the lasers and the sawblade in the middle. I must say it's slightly infuriating. I also ran into lag issues while playing, but nothing too major.
I feel like maybe it wouldn't be unreasonable for the ball to go where you point the mouse, but maybe that would be too easy. It's hard for me to shoot a somewhat slow shot and get it where I want it at the same time when shooting in reverse.
Overall, I think it's nicely polished and the feel is there, it adheres to the theme as well as any game could, and it is a very unique idea. So nice work!