This is a pretty interesting take on the theme. The levels are good about slowly introducing mechanics and are designed in a way that made me stop and think about my every move. A few of them had me stumped for a while, but they never felt frustrating. If you ever decide to come back to the game, I think it would be neat to have some type of button or sensor that requires you to amass a certain amount of blocks since the current version revolves entirely around having as few slime blocks attached as possible. The art and sound do their job well, although the move sound effect does get annoying after a while. Great job, this idea has a lot of potential!