Some people never tire of Space Invaders, but it's nice to try a variation. This one has two on the same tape, to be used with either the 3K or 8K memory expansion.

The packaging is deceptive, showing a jet fighter attacking an aircraft carrier and a close-up of a World War Two Japanese pilot. It remains another version of Space Invaders.

It seems slow compared with other games of this type. You have to shoot suicidal aliens foe one point each and their mother ship, which scores five. You start with one battle station of your own and, unlike other versions, you are awarded another for every 25 points. Cursor keys are used for left and right movement and the spacebar for firing. A joystick can be used for more flexibility.

For all Space Invaders addicts who are looking for a little extra, without spoiling the fun.