Does the world need another version of Space Invaders? Evidently PSS thinks so, and has to be credited with an above-average standard of graphics and variations.

The game itself has not been changed, but PSS's machine code version provides excellent use of the Oric's sound, colour and graphics, to warrant its comparatively high asking price.

Apart from the option of a one or two player game, pressing the S key will turn the sound on or off, while H can be used as a pause button during a game if the phone rings or you just need a breather from the all-out action.

Each player starts with three lives and a fourth is added on reaching 1,500 points. Hitting the mothership that crosses the top of the screen from left to right at random brings a mystery bonus.

Scoring is not easy as the aliens rain down bullets, with the occasional extra speedy missile usually catching you unawares, and a 1,000-plus score is a notable achievement.

Loading Invaders into the Oric is a mite touchy at fast speed, but this is due to the fact that PS wisely provides a well-recorded tape.

S.I.