Producer: Psion, 16K £4.95
A very good copy and a classic version with the best graphics of the lot. Nice bright yellow asteroids which shatter satisfyingly. A bit slow, although the shattered fragments change direction and move faster. Alien ships are well defined graphically. Using Z/X for rotation and SPACE/ENTER for fire/thrust is quite good, but H for hyperspace takes some getting to in an emergency. No skill levels, which means the addictivity rating is low, but good value at the price. No joystick option.