I didn't understand what was going to happen. I tried to put the pieces in a row, but nothing happened. There are a lot of figures in the beginning, and it's difficult to move them in a short time and figure out how they should stand.
Thanks for the feedback. The goal is to clear the space above the target block or move that block all the way to the top to earn points. In a future version, I’ll add a “How to Play” section inside the game or an in-game tutorial for first-time players.