Game has quite a unique idea! Slime merging into stronger slime in a tower defense game is fairly unique. I do think that the balance was off however. Towers did too little damage and thus killing enough slimes to buy more towers took too long during which time your health goes down. Furthermore, and perhaps it was intentional, the zizag routes made them unfriendly to optimal tower placements since pretty much one location allowed safe hits from both sides. That aside, there's a great concept here, good going!