Really fun puzzle design! At some points I wish I'd had the ability to reuse a split or combine button if I accidentally walked over one or something, but that's the nature of the game; overall I thought it was really clever. Thanks!
Thanks so much for taking the time to play the game! We had originally designed the game to allow the player to split and merge at will, but ultimately decided that made it too action oriented, and not as puzzle oriented. Glad you liked the design we went with!