Lazer Wheel

Aliens have decided to invade the eight sectors of the Hyperspace Causeway by
planting bombs to destroy them. You are a pilot of a spacecraft sent to the
sectors to destroy the aliens and their bombs over various levels. The game is
viewed from above with each sector shown on the screen and each sector takes
the form of a circle with you sat in the middle. The aliens and bombs sit on
the edge of the circle and move around the edge to avoid being destroyed. On
later levels, circles spin around your craft and need shooting before they
explode.

Each alien and bomb take the form of different coloured blocks (C64) or shapes
(ZX Spectrum) and when shot reacts in various ways to try to hinder you in
your mission. This includes splitting into other blocks/shapes or having to be
shot before exploding. If you miss a block/shape when shooting, a grey
block/circle appears for a short period of time and if shot, the bullet
bounces back and hits your craft causing damage. If you reach 100% damage then
it is game over.

As aliens and bombs appear and disappear when destroyed, the other seven
sectors are also having an attempt to be destroyed. On the right of the circle
is a box called Lase Scan and this shows decreasing bars for each sector and
when a bar empties then that sector is destroyed so you must jump to the
sectors to destroy the aliens and bombs. A timer in the bottom left of the
screen counts down and when this reaches zero and you have sectors left then
you have completed the level and you move onto the next one where more aliens
and bombs appear moving faster.