Hello! After playing a little, I realized that the "up" button did not have a clear function for me at first. At first, I thought that it was impossible to rotate the blocks while they were flying, but after pressing the up arrow button for the first time, I had the thought: "What, why is there an up arrow here and it rotates this block and does not raise it up." After playing a little, I already remember what it means and I calmly use this button, but the first impression was a surprise.