Press the green flag, choose a difficulty, and press enter. Then press space. Press the left and right arrow keys to move left or right. Press the down arrow key to send the block down to the next available space below. Press f to flip the blue block horizontally or the pink block vertically. To win, fill up a certain amount of rows of 1x1 block. Easy - 2 rows, Medium - 4 rows, Hard - 6 rows. If a block ends up above the seventh row, you lose.
