Love this puzzle-platformer game. Well designed. However, as others have mentioned, the controls are a little inconvenient. Not sure if the rolling was intended to play a part in the difficulty of the game but it's a bit of an inconvenience. Would be smoother if you just added a jump button. I kept rolling into pits throughout the game XD. Furthermore, the change in pip color could be a little more obvious, took me a while to understand the game because I didn't see the missing pips. Besides that, overall, it's a great game. Enjoyed it very much :)