Asteroids is a Asteroids game where you play 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. When all asteroids are destroyed, you can move on to the next round. In addition to the asteroids, you'll also face an Alien Robot Saucer that shoots randomly across the screen.
The gameplay involves rotating your ship left or right and moving it forward using the controller. 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. You can also use the hyperspace warp to avoid a collision, but this may also destroy your spaceship.
The asteroids will break up into smaller pieces or be destroyed when shot. There are three types of asteroids: large, medium, and small. Large and medium asteroids will break up into two smaller sized asteroids when shot, while small asteroids will be destroyed.
Alien Robot Saucers come in two sizes: small and large. Both use photon lasers to shoot and will explode when destroyed. Alien Robot Saucers will not appear at the Novice Level.
The game offers four available difficulty settings: Novice, Intermediate, Advanced, and Expert. The game also features three different 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 affect, 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 the Player 1 is viewable on the upper left side of the screen, while Player 2 on the opposite upper right side. A player will be awarded 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