Glitchy but good.
The game is very good. Sometimes the ball can get stuck on one of the guys with baseball bats and you'll sit there for a minute waiting for him to move so that the ball can kill him. And the boss battle was incredibly laggy here. It was unplayable on my machine. May be more of a problem with my system than with the game, but the inability to change quality settings sucks.
All in all, I give this game an 8 out of 10. It's a very good game and a very unique idea. If you stick with ideas similar to this one, you'll definitely succeed on NG.