A very stylish game, for sure. The amount of attention the visuals got, from the animation of the slimes, to the animated menu buttons... Animated menu buttons! In a GameJam! It's just something else. As much as I love the candy-crush-like diabetic purgatory, there are some technical issues - there always are.
First of all, the rotating platforms could really, really move faster. They could be moving 2 or maybe even 3x as fast, and would be considerably better than waiting for a new platform to slowly cycle around. Just simple balancing suggestion.
Pause menu buttons don't do anything. In one spot, I got all the way to 8 slimes, which seems to be the maximum, because well, the piranha plants were snapping good 2-3 second after I was clear, but my guys were still going. The music was good, though the main 4 notes repeating over and over again got very annoying after a few levels. Might want to smooth them out into the background or get some more audio variety in the future. My game didn't have any music, so you're better, but ya know, there's always room for improvement!