Super fun! I don't know why, but I have been having fun playing it multiple times and trying to speed run it. Because of that, I noticed that the controls on releasing the stretching can be helpful, but it might be nice to have a way to just let go because sometimes I would get stuck clicking when I was tying to stretch something new, not the old one. I would also get stuck if I was standing next to a wall, it would stop stretching which makes sense for several cases, but sometimes I was not going to get crushed, but I would still get stuck and could not stretch.
It might be fun to have a speedrun timer in the game for replayability, but that might just be me - I loved this game!