Astro Navigator

Astro Navigator is a 1-player arcade game for the BBC Micro.

The player must navigate their ship through 11 caves full of sharp twists and dangers from above. The ship constantly moves from left to right, and the player can move up and down, and accelerate or decelerate. The goal is to reach the right of the screen and, if the player hits any obstacles, they restart the level. There are five levels of difficulty, and the player starts with five ships.