I'm having some trouble here...
I can't make a created object interact with another object with Physics behavior...
My CAP:
http://www.mediafire.com/?k034lnozex3
Run the game and see what happens when you click and create more objects to bounce the big ball.
Its a bug?
That sure does looks like a bug.
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Yep its a <img src="http://czestochowaforum.pl/images/avatars/184949494247b4c9cf63cad.gif">