A sequence of snakes made of colored balls fall down into the playing field. The object of the game is to manipulate the direction of these snakes, by using the joystick, in order to form a line of 3 colored balls vertically, horizontally, or diagonally. The game ends when the playing field tops out, that is, when there is no room for a new snake to enter the playing field.
Stages are cleared by obtaining a set number of points. Gameplay gets progressively more difficult in later stages as snakes fall at greater rates, and new colors are introduced.