Beamrider , released on Atari 2600 in 1984, is a 3D arcade action game. You control a beam riding spaceship on a mission to clear space from hostile aliens. The spaceship is located at the bottom of the screen and it can only stop on one of five beams. You are armed with both lasers and torpedoes; torpedoes are more powerful and can destroy more enemies compared to lasers, however you only get three per level. To complete a sector, you need to destroy fifteen white flying saucers. After all saucers are destroyed, the sector sentinel passes by which can be destroyed for extra points.
As you progress through the levels, new types of enemies will appear, but they won't pose a significant threat to your mission. You'll also have to contend with an occasional rejeuvinator, which can give you an extra life if collected, but beware – shooting it will turn it into an enemy!