This game is an unlicensed version of Asteroids.
An 'Asteroids' clone for the ZX Spectrum.
From the inlay:
Stay cool and calm and you'll survive the onslaught of passing planetoids.
Dodge and swerve using your thrust button, turn on a planetoid...fire! But beware - the alien ship moves fast to destroy you with cluster bombs.
And when it comes to the crunch, use your hyperspace button!
Full-colour high-resolution graphics with sound.