Was hooked right away, but I didn't got the controls right at the beginning, a small reminder (like a sprite of a key/button over the cauldron for example) would've been a nice touch.
Overall the core loop is working as intended, even if that's a tad repetitive at some point. I would've love to see a bit more stronger variety in the upgrades or some kind of more clear end goal, maybe some more situations where you have directly agressive enemies to prepare you to the inevitable overload.
The art is really cool and cute, I love the dark tavern/bar setup and the overall mood is really cool and somewhat cosy, even if that's stressful af when customers piles up.
Bravo to you, congrats on completing the jam with a finished and successful game !