This is a really smart puzzle game, but you NEED to fix the tutorial! I had to scroll through the comments to understand how the game works.
You see, in my opinion, the tutorial fails to teach an important thing: That the number in the top right shows how many scales you have left! I was left so confused why I could only scale once. You could fix this by adding text or even simpler: Don't allow selecting blocks when you have no scales left. With how the game currently is, I used up my first scale and everything worked. Then I selected another 4 blocks, the UI and everything showed up, but I couldn't drag the corner! If the game wouldn't even allow to click on a block I would immediately understand that the game doesn't want me to scale any more blocks.
But besides that, after understanding how the game works, it's a wonderful, smart puzzle game!