This feels really well polished. And somehow, even with the theme of the jam, that little twist with the ice cube caught me by surprise. It's a very fun little game with audio and visuals that fit it well.
I felt like it would have been nice to have a little more control over jumping. It's not the type of game I've ever been very good at and I kept jumping right into the first bosses attacks, after many tries I got real close to beating that boss but couldn't do it, its low health attack got me every time.
The regular enemies in the first level fit the look of the level and felt well done but I could see them getting a bit repetitive in a full game.
Aside from those points I can't really think of anything else to say, it's a nicely done game and I had fun playing it even though I sucked at it.