1. Allow more than just one throw.
2. Keep track of the score.
3. Maybe have some sort of Win or Lose challenge. For example: If score goes over 100 points before 10 throws, it's a win.
4. Make it a two-player game.
Didn't expect you to reply Xray lol. I am definetly going to add the more than one throw and two player game suggestions you made in a future version =)