I really like this game! the first impressions, the goal is simple and the controls are simple to understand, the control hud in the corner is a nice touch. Figuring out how the stretching works wasn't too hard either, the gameplay is pretty fun and the visuals are very appealing. The stretch and squish buttons were in a weird spot since I started on wasd but after switching to arrow keys, it was fine. I think the use of the left and right click would've felt nicer, but that's my preference. For level design, it seemed that the first room, where people need to learn the controls is a bit tough to get past, at least for me it was. I had to fall and come back up a bit. The art is very nice, some of the foreground and background colors clash and make areas seem inaccessible when they are, but overall very nice.
Overall, awesome game concept, applied in a fun manner, 8/10