Definitely a short but well thought out title. It's clear that it was made in a time crunch for a Game Jam. However, you can see that it had a clear scope and story / angle for the game. I just wish there were at least 3, maybe 4 enemies.
The pixel art is really good, but I found it to be oddly mismatched. It felt like the scenery and levels were more polished than the bosses. I'm unsure if it's because there's an asset pack being used (fine given it's for a Jam) or there was just a different artist / time spent on the level itself. The same polish on the bosses would be great.
All in all I enjoyed my play-through. It's short and sweet and the bosses are a little difficult out of the gate. However, when you know what's going on, it's quite straight forward.