Really good presentation and a fine concept but the gameplay loop gets old far too fast and doesn't have replayability. It's way too easy and doesn't have enough mechanics to make the game interesting. I don't think it fits the theme either. You could say that it is because part of the game is keeping the ball out of the goal, but it's not the main focus of the game. The focus is murdering the players. It just doesn't work for me.
Remember, the most important aspect of a game is design. Not graphics or music.