It took me a second to actually figure out that you were trying to dodge the stuff coming at you (not contain it) and that the bar on the right showed how close they are, but once I figured that out it was a little bit more fun. However there seems to be an issue with the mouse movement because no matter how big/small the loop was moving the mouse would only ever move the loop a few pixels. This made it pretty hard to dodge a lot of the later obstacles