I think this game is pretty good. I got it for free and have played it for a couple of weeks. Those of you that are having trouble, the directions tell you that if you pause the game it will do a calibration on the gyro. So position the iPad in a comfortable position then pause and resume game.
My biggest complaint is that it wont let me rotate it 180 degrees so that I can use the smart cover to prop up the top edge.
JackHyde about 3D Olympus Archery Pro