This is definitely a cute little game and I liked the unique mechanics of sticking to a surface and launching yourself at it. The aiming with the mouse and movement feels very intuitive so that's really well done.
Unfortunately there was quite a couple of places where the game was buggy, I would launch myself at a cube and got stuck floating in between / on a weird corner (see screenshot). When I would move it would just drop me to the floor and reset me. At the first cube I didn't mind it too much, but it was quite sad when it happens further in the level and then you lose progress due to a bug rather than not playing well.
I didn't get to see the end of the game, but I liked the audio and the style choice!