The cannon would have done one of 2 things... 1. nothing. 2. Blown out backwards and killed the squeaky idiot-guy. powder ALWAYS goes into the barrel before the ball. 0/5
21 was not as hard as all these comments made it seem, its simple - each spinner is connected to the ones up/down and left/right of it, only the diagonal one doesnt spin in sync. just get an odd number of spinners in either position, and its simple from there... 5/5 great 5 min game!