Spiral Galaxy

Spiral Galaxy is a 1-player arcade game for the 8-bit Atari.

As the commander of the city defenses, the player must destroy the enemy ship before it reaches the city and steals their treasure. The enemy ship is equipped with a special spiral drive which enables it to travel in a swift spiral motion while emitting blasts of deadly radiation. The player has limited shots, and it takes three hits to destroy the enemy vessel.