Not sure whether these are important enough to be classed as true bugs, but while playing the demo I have once had one of the purple snakes from demo-1 pass though a diagonal barrier I had placed, and one of the bullets from the snake on demo-3 did the same thing. However, I have not seen these things more than once, so it may be inconsequential. Also, just a small thing, not really a bug, but trying to place a ball in a specific spot is weird because the way they are placed does not seem consistent. Sometimes they come out directly behind, but sometimes the appear more in the center, or to the front. Other than that small thing, the game is great!