Oops, I thought I knew what the problem was, but now it appears I don't :< I suppose you might have to wait a little bit while I figure that one out.

I believe that is from the ball thinking it is on top of a block. The beeper image is larger than the ball in it so the scenario thinks it has hit something when it has it. I might fix it anyway though.

When you shoot, the ball hits the wood, but the ball stays on the ground. It should stay there for a few seconds, then re-appear at the slingshot. The wood should disappear when you hit it, too.

Thank you tenguorange90. However, the point of the engine is not just for angry birds. The point is for people to have the a base for their own games, be it angry birds, rag-dolls, etc. I merely put in the slingshot and green "pigs" to demonstrate its capabilities. I will almost certainly create an angry birds spin-off with this and will implement your suggestions.