Really fun game. I liked the level ideas and the box on the left added a lot of personality to the game.
I am happy the final level only required getting one block in, it was a nice showcase of what an expanded version of the game could be for changes of pace and different types of puzzles. I felt like some of the early levels were a little long for what they were about - the plinko level would be a good example as it took a while to build up. Also, often the build up of ice blocks allowed solving the game a little more easily than I think was intended (Although that could be a good thing for the GameJam and the later levels did not have this problem as much). I liked a lot of the later levels especially and the lava allowed the levels to be skilled base combined with the puzzle aspect.