This game is simultaneously very cute and also makes you want to give up and right click to teleport when you see the final screen, but that seems to be your trademark level design style! The concept is really simple, but it does a lot with that concept and expands on the usual block pushing puzzle genre by allowing more than one action to simultaneously happen, and forces you to hit certain tiles on certain timings, making the movement more strict and thoughtful than in a usual blockpusher, but still not overly strict because you can just reset most puzzles by sending out yet another ghost cat. At the same time, since it's turn based, the difficulty isn't based on how well you can input things either, which is very fair. You do a lot with the concept, and I think there is a lot of potential for much more difficulty variation down the road without having to change or add many core mechanics, which is really neat. Like others said, an undo button would have been good for this game since the harder difficulties add more irreversible ice blocks, but still, really great!