Wow, this is a great puzzle game, especially for a short game jam. The "tutorial" levels are really well-designed and the number of mechanics implemented was impressive. My one bit of feedback is that sometimes it's easy to miss a pumpkin, even when you're right next to it. Perhaps not allowing the player to use energy unless there's a pumpkin to use it on could help to avoid the frustration of almost beating a more difficult level and then needing to start again from the beginning. Aside from that small issue, this is really good!