I loved seeing this concept of "leaving yourself frozen behind" applied to this jam!! When discussing ideas we were going to use this concept in a kind of racing game but decided to move on after some thought. I really liked the idea and this game implements it very well. Really loved the art and the design of the levels, very suited for a jam.
If I had to give a bit of feedback it would only be two small usability additions. When dying, the other "corpses" shoudln't despawn in my opinion, as it makes players need to redo all "freeze character" cycles again if they miss a jump after "completing" the puzzle. On the other hand, having some UI information to know which direction are your non-screen frozen blocks would be nice to avoid blind-jumps and maybe give information about how much time does a frozen block has left.
As said it is a fantastic game and I enjoyed it entirely. Great job!!