As commander of the Starship Patscram, it is your task to clear a landing strip in a hostile city defended by ground lasers and spacecraft.

This is an addictive game which requires dexterity to manipulate the ten keys needed to play fully. There are plenty of skill levels and great scope for player improvement.

You score points for forward movement and firing splat-bombs but these diminish your fuel. Points are also awarded for destroying the enemy, safe landing and refuelling. High scores can be saved on tape.

This is a lengthy program to load but there is only a minimum delay in setting up. It has at least two bugs:

1. The acceleration command lets your ship eat the right-hand boundary.

2. Bomb speed keys are inoperable if ship's control keys are reselected.

But these are minor irritations in what is otherwise a very good TI game.

C.E.