Really interesting game, I enjoyed playing it, and I loved the animations when you break a wall.
Here are some suggestions for you to improve your game:
- The landing sound is REALLY loud, which led me to play muted because even when the music was barely audible, it was still annoying.
- The character sticks to walls. It really pissed me off while starting to use Unity, until I discovered that changing the player and/or the wall material solved this issue.
- Even when you're on a tiny space, you can still change size. Limiting it would be nice.
- Sometimes the ground detection took a while to detect that I was on the floor.
- The stacked boxes "puzzle" was not a puzzle because the outline you left spoiled it. My personal opinion, but you shouldn't be running from puzzles in this kind of game.