I really like the concept of separate the cubes, its really fun. I think the acceleration is a bit strage (for me), you can move really fast but your jump is a bit low, and sometimes you have to stop to jump higher.
Thanks for your feedback. You should have seen some of the previous attempts of player movement. It ended up like something that feels a bit like ice-skating and I have to admit, it's not 100% what I've intended. I am very happy that you liked it. Looking forward to the next jam. :)