I somehow mixed up something. I think I was still drawing the circle and the line segmented circle at the same time lol. The line segmented circle works almost perfectly. For some reason when a lot is going on... which doesn't take much on the iPhone (25 or so squares in a 20 sided polygon), the squares start to fall out. For example, when I get under about 20fps, it's like the system isn't quick enough to check for collisions and lets them slip through. I'm going to do some more forum searching to see if I'm missing something.