I liked the art and music, in general. It's a good strategy game.
Two small problems are:

- This Jam requires 2 colors and this game has about 4.
- Sometimes the character behind appears in front (in Unity you can solve this with Y sorting).

Anyway, it's a fun game. I don't think it needs to be controllable, as some strategy games work fine without it, like Clash Royale.

Really clipping tower defence game and it could be even better if player could control the projectiles manually. For now the only interactivity is upgrade system