Wow! It's very polished. I especially love the level transition animations and stuff.

My gosh, as the person who usually does UI/UX in our team's games, I can appreciate the level of effort put into the user experience here. The sounds/visuals of the box scaling mechanic, how the keys for a door move rhythmically before opening the door, the level transitions... The art for the game is well-done and the game's mechanics are keeping me interested. Amazing job on this game!