Having collected an aiming cursor, hitting the green enemy becomes a touch simpler - here, one is about to explode.
Flying a manoeuvrable fighter through 16 levels of horizontally-scrolling space environments, you encounter four types of enemy craft.
The small flying ships are easily destroyed, but ground installations are tougher and command ships are heavily armed. Giant mother ships appear at later levels; asteroids and flying debris also threatening your fighter.
But for protection you have a speed-up facility, pulse lasers, plasma bombs to destroy ground bases, homing missiles and seeker missiles.
Apart from a basic laser system, all weaponry is activated - or its power increased - by scooping floating fuel units into the craft.
An indicator shows what equipment will be activated when another unit of pink fuel, made available when alien ships are destroyed, is taken onboard. But each weapons system is only activated for a limited time...
The seeker missiles are the most powerful: when they're activated, you earn a thousand-point bonus and the cycle of weapon-acquisition begins again.
Destroying alien ships and bases earns you points, of course; bonus lives are given when you reach 10,000 points and with every further 20,000 points.
Producer: Hewson
Price: £7.99
Author: Dominic Robinson
