Wow! This is the best tower defense game, and one my overall favorites in the jam! It's got awesome visuals, cool music and sound effects, and even upgrades for the tower!! Very polished for a 10-day jam. Oh, and it was really smart how you fit the theme by having the player manage both the glooples and plooples :D
I can't think of any significant feedback. A minor thing is some UI doesn't show up well if you're not in fullscreen in the WebGL build. But that doesn't matter. I'd love to play a longer version of this, especially if you introduce some sort of storyline!