Asteroid (アステロイド)

1 or 2 player game. Joystick for each player moved a space ship up or down.

Object is to move a space ship up or down through a horizontally scrolling asteroid field (half the asteroids moved left-to-right and half moved right-to-left). Asteroids were just simple dots. Each time a player made it to the top of the screen a point was scored and the ship was reset to the bottom of the screen. Colliding with an asteroid reset player to the bottom of the screen. Game was timed.