Very nice take on the theme! I loved the art and audio - they paired nicely. The controls felt great except for rare occasion when needing to untangle threads in some later stages. Perhaps rightclicking connections to break them instantly instead of trying to hold click might feel better? The latter puzzles felt a little tedious - particularly the one with the yellow slime that needs to reach around a wall to navigate blues around spikes. Needing to pass stars back along the chain was tedious and accidentally hitting a spike reset the entire level which felt pretty bad because by that point, the player has figured out the puzzle and just needs to complete it.
I really liked the slow introduction of new slimes and mechanics. Great design. :)