Extreme

Your task in Extreme essentially involves wiping out alien pirates, across 3
distinct sections. This was essentially a spare-time pet project, so you would
expect some of the most advanced graphics and special effects you’ll ever see
on a Spectrum.

The first level involves flying around in a ship shooting out aliens, with
contact depleting your energy (and causing the screen border to flash). The
second section involves travelling underwater, running into landmines to set
off explosions to kill surrounding enemies. The final part sees you travelling
through a building in a huge droid, taking out everything in your path. The
game is quite short, and would take around 20 minutes to play through.