Xenion

Xenion is a 1 - 2 player arcade game for the TRS-80 CoCo.

The player controls a small spaceship which can move in all directions, and fires directly forwards. The player combats streams of alien vessels, that swoop in and fire at the player. The player has limited health, and energy can be replenished by picking up energy cells. A small radar in the bottom right of the screen notes when tanks, helicopters, or forcefield dangers are approaching. Forcefields cover most of the gameplay area, and can only be destroyed by shooting their generator. The player has 3 lives, and it's game over when all are lost.