Really cool you have to think outside the box to disassemble the box... you need to be smart to win at this game! I guess that explains why my attention span ran out when I beat level 9...
Okay, let the hedgehogs move a little faster, and (this is a big one) after a while of playing the barrier surrounding the ring that keeps you in, stops working allowing you to run off into nothingness for about a second then it starts freaking out... see if there's any way to fix this and you got yourself a great game!