Subspace Striker is an outer space version of Submarine Attack. You lurk in subspace until a target appears on your scanner. Then up you pop and fire as your prey speeds across the screen.

Retaliation comes mainly in the form of space mines. You select a depth and position, and just sit it out.

This game is no classic, but the graphics arc very good and sound effects add to the atmosphere. Once mastered, little skill is needed and whether or not you obtain a high score is largely up to the random number generator. But a good game nonetheless.

In Zor, you take part in a battle between two robots, each taking turns to do their worst to each other as the range slowly closes.

Any hits on you drain your energy, as does putting up your shields to cut down the effect of the enemy fire and, in the second stage close-combat battle, firing your weapons. But at least your opponent is in the same position.

The aim is to wear down your opponent before he wears you down. Again, once you get the hang of it, it doesn't take much skill, and the sound effects are nothing special. Quite nice graphics, though.