I tried it out and found the controls incredibly frustrating but the concept itself was enticing. I kept trying to get better, but it seems I was fighting a losing battle. I didn't like the window going up when I tried to jump so I played it fullscreen, and learned later from another comment that the inputs don't work right when playing that way.
I imagine it wouldn't have been so unbearably difficult if I could reliably jump, haha. A shame, but I can see what you were going for. I did discover a bug however. As shown in the image below, following the red line I drew on there, if you slide in to the right side of the glass just right or just fast enough (not sure what happened), you end up phasing through the ice cubes, both of them. I gave up after that.
Problems aside, I loved the idea of it and the art! I also like that you gave very fast and infinite retries. If I could get the controls to work I would've kept playing longer.