Star Cresta

Star Cresta is a 1-player arcade game for the TRS-80.

The player controls a small spaceship which moves horizontally and fires vertically. There are 3 different types of levels, where the player fights against a number of fast moving small spaceships, fights against a number of slower moving larger ships, or competes against a large alien mothership. The player has limited 200 points of shield which briefly makes them invulnerable. If the player is hit, they need to restart the level, and all enemies must be destroyed to proceed. The player starts with 5 ships, and when all are lost, it's game over.