Use the keyboard A, W, D, S or arrow keys Left, Up, Right, Down, and mouse button - if the game description "Extreme Blocks" is not stated otherwise.
Description: Create horizontal, vertical or diagonal lines with the lines on the falling blocks. Create lines of 3 or more in length to remove them. Remove as many lines as the indicated goal to advance to the next level. Touch a block to rotate it, touch a column to move the block and swipe a block down. You can also use the controls to the right of the playing area.