GOG Sale: 50% off Witcher 3! 80% off D&D classic games (Baldur's Gate, Icewind Dale, etc)


Critic Score User Score
Amstrad CPC
Commodore 64
ZX Spectrum
Not an American user?


Mankind has spread throughout the solar system into vast colonies, which are under alien threat. The bad guys have anti-matter machines capable of destroying the planets' power source. You must destroy these before they can reach Critical Mass.

Your journey involves travelling primarily to the east, in a hovering craft. It is rotated with left and right movements, and accelerated with forward motion. Laser and shield strength are limited and monitored on screen. Use them wisely, as hostile aliens and mines line the route. Get shot down and you re-emerge with a jet pack, now directed to the bay which can give you a new craft.

The force-field gates near the power planets are guarded by turrets which must be shot down. The mission then boils down the insides of the plant, which must be destroyed before its tractor beam has sucked you into the core.


Power ZX Spectrum Blister pursuit. The little blue fella over there has to hit the turret so that the wall defences momentarily get down.
Power ZX Spectrum Bonnnzai!! Do you know that the expression <i>bulls eyes</i> is derived from this word's phoneme? (it's Banzai you meathead!)
Power ZX Spectrum Turn your eyes if you are susceptible. This is too much.
Power ZX Spectrum Died this time

Alternate Titles

  • "Critical Mass" -- European Title

User Reviews

There are no reviews for this game.

Critic Reviews

Your Spectrum ZX Spectrum Dec, 1985 9 out of 10 90
Crash! ZX Spectrum Dec, 1985 90 out of 100 90
Sinclair User ZX Spectrum Dec, 1985 4 Stars4 Stars4 Stars4 Stars4 Stars 80
64'er Commodore 64 May, 1986 11 out of 15 73
Happy Computer Commodore 64 1986 70 out of 100 70


There are currently no topics for this game.


There is no trivia on file for this game.

Related Web Sites

Contributed to by Martin Smith (63028)