Astromania

Astromania is an action game released by Moonbeam Software in 1982 for the TI-99/4A. It is written for the TI Extended BASIC module and consists of four different stages of gameplay. The goal is to earn as many points as possible by successfully completing each stage. The stages of the game are as follows:

1. Sulconon Asteroid Cannons: Players control a spaceship located at the center of the screen with four enemy canons present, one at each edge of the screen. The canons fire asteroids towards the player's ship; to survive, players need to rotate the ship so it is facing an asteroid and fire to destroy it. If any asteroids hit the ship, a life is lost.
2. Caustress Aerial Attack Squads: In the second stage, the player's ship is moved to the bottom of the screen; player's can't move it, but can fire at will. Groups of three aliens at a time move across the screen starting at the top and making their way towards the bottom. Players need to shoot all three ships before they are too low and crash into the player. To complete the stage, multiple groups of three aliens each need to be destroyed.
3. Trisod Meteor Belt: The player's ship now takes off towards the top of the screen with numerous asteroids in the way. The ship moves automatically upward at a fixed speed, however players can guide it to the left and right and will need to do so to avoid crashing into any asteroids. The stage is complete when the ship safely reaches the top of the screen.
4. Zircon Droids: The final stage is quick; as soon as the ship makes it to the top of the screen, a droid will appear on either the left or right side. Players need to rotate their ship and shoot the droid before it crashes into the ship. The stage completes whether or not players are successful; if players fail to shoot the droid, the game still continues as long as players have lives remaining.

If all four stages are completed, the game repeats with increased difficulty. Players begin the game with ten lives, and the game will keep repeating until all lives are lost.