I love the concept and mechanics of this game!
A really good way to implement the theme for the jam as well!
It feels as though the spawns are either fully or semi-random. Because of this I was able to spam "attack" as the enemies just walked into my melee range.
I understand that due to the nature of it being a "Jam game", time is stretched thin as-is. But if you ever were to expand upon this game concept, I think making more hand-crafted levels would really push this game to the next level. It would turn into an awesome little puzzle-game, where you really had to plan your next move carefully!
Very solid work!