Various objects have to be arranged in a way that they fill all spaces in a line. If a line is finished, it disappears. 10 points are given for a landed object, and 100 for a finished line. The game is started with the space button. The objects can be moved left or right with the arrow buttons, rotated with the up button, and accelerated by the down button. On the display next to the playing field the object set to appear next is visible. The game is over when the objects stacked upon each other reach the top of the playing field.