I was having fun for a good little bit while checking out the game jam. While I realize there had to be some penalty for getting too cold, I think the "move very slowly" penalty is crippling in its current implementation that kills the fun of the game. I was on a stage that didn't have any fires near the start on the bottom level after I fell, and I found that because I couldn't move quickly anymore, I couldn't jump back up to where there was a fire. I would have been content if I had perhaps turned blue or got covered in ice and died (and suffered that penalty, which seemed to be respawning at my last fire), but I found myself instead in a state where the game seemed unplayable. If there was a fire somewhere down there, it was too far away for me to warm up.
The visuals were really good. It was a reasonably fun little game until I got stuck.