Obviously related to Centipede but with sufficient innovations to distance itself from the typical cover jobs. A cyan segmented space worm is wending its way towards you, with green meanies for company: as your laser chops up the worm, slices of it become detached and pursue independent courses.

Green and purple cosmic toadstools remain in the spots where you scored hits, taking several more shots to be finally disintegrated. Wipe either form of adversary from the black sky and they spring back more numerous than ever.

A spinning fuel tanker crosses the top of the screen spilling acid rain; hit this ship to gain extra fuel. Apart from maintaining the enemy levels you will also need to ensure that your laser tubes don't overheat; to advise you on both critical requirements there are gauges on either side of the screen.

To do well you will have to balance the need for warding off aliens and collecting fuel against resting-up your weapons systems, much as you might enjoy execting endless banana shots as allowed for by the program.

Plenty to do in this action packed space battle with very good use of colour and excellent sound, that's if you like the "Star Wars" theme.