To play the game, use your mouse to click and drag a tile from the bottom of the screen and place it on top of the red cubes to make them turn blue. There are three different modes to choose from: Easy, Medium, and Hard. In the Medium mode, white blocks will act as barriers. The Hard mode includes the option to rotate the puzzle pieces by clicking on the button in the bottom right corner. Your goal is to make all the squares blue. If you find a puzzle too difficult, you can click on the arrow in the upper right corner to skip it. Good luck!