Asteroids on the Asteroids Atari 7800 puts you in the role of a spaceship pilot trapped in a gigantic asteroid cloud. Your goal is to pulverize incoming asteroids with your ship's photon cannon until all are destroyed, then move on to the next round. However, be prepared for an Alien Robot Saucer that shoots randomly across the screen.
Control your ship using the controller to rotate it left or right in any direction or move it forward. Shots will be fired according to your ship's direction. You have three reserved ships available to replace a destroyed spaceship. The spaceship is destroyed if an asteroid collides with it or is shot by an Alien Robot Saucer, and you can opt for the hyperspace warp to avoid a collision.
Asteroids come in different sizes: large, medium, and small. When shot, they break up into smaller pieces or are destroyed.
Alien Robot Saucers also come in two sizes and will explode when destroyed, using photon lasers to shoot at you. They will not appear at the Novice Level.
Game Difficulty and Variations
The game offers four difficulty settings: Novice, Intermediate, Advanced, and Expert.
The Asteroids also features three different game variations:
Standard Play - For one or two players, taking turns when a player's ship is destroyed.
Competition Asteroids - Two players appear on the screen at the same time. Friendly fire is in effect, which means shots fired from one player's spaceship will destroy the other player's spaceship. Each player has separate ship reserves.
Team Asteroids - Two players on the screen at the same time. Friendly fire is disabled, which means shots fired from one player's spaceship will not destroy the other player's spaceship and just pass through. Ship reserves for both players are combined.
The score of Player 1 is viewable on the upper left side of the screen, while Player 2's score is on the opposite upper right side. A player will receive a new reserve ship for every 10,000 points.
Small saucer - 1,000 points
Other player's ship - 500 points
Large saucer - 200 points
Small asteroid - 100 points
Medium asteroid - 50 points
Large asteroid - 20 points