I can see the concept and I know this is the sort of game that is going to grab many people instantly. The puzzle of lining up the shots to get the most out of the bullets and things is going to be some people's favourite type of game.
Unfortunately it doesn't work well on a laptop with a trackpad so I was unable to really enjoy it, however I see the idea and I appreciate it for the game it should be if it weren't for my limited hardware.