The space manipulation mechanic is great and the first few levels feel really fantastic. I similarly got stuck around level 7 or 8 and wasn't able to get farther. I think the difficulty on puzzles ramps up a bit too steeply, at least if you have 60+ levels. The early levels get peppered with so many glitches that it feels like there is only one possible solution which kinda killed the fun of manipulating space for me. I also had some weird issues popping up where it seemed levels intended you to compress space while mid-air, but I was only able to do that if I was holding a WASD key while also jumping and clicking on a space. If I just jumped with space and tried to click to compress space, it wouldn't do anything. I had to be holding one of the directional keys as well. It was a little jarring and made those puzzles feel a bit rougher for it. That said, I really do think the core mechanics here are really fun to play with and can go far. So a little more polish, adding things like music, and maybe easing the early levels a bit more could really make this shine for me.