An extremely fun and responsive game, you really hit the spot for making an engaging puzzle game.
I love the particle and movement of the block as I interact with them, making me feel i'm doing something. I also love the exaggerated screen shake when you are doing wrong or not allowed. The sound effects for the interaction is also great
The music is a weird choice for a puzzle game but it doesn't subtract from the experience.
However, there are things you should take not.
1/ Manual/Auto change -- Since all other UI of your is a button, naturally, I also expect the Auto/Manual is also a button, which confused me.
2/ You lost all progress when you press home.
Overall, a very polish and interactive game to be made in 48 hours, congrats! 9/10