Most versions of Scramble for the unexpanded Vic 20 are a profound disappointment, presenting the player with fuzzy graphics, weak sound and dismally low speed.

Scram-20, though, is different. It's the sharpest and fastest Scramble game around for this machine. The chunky, colourful graphics give a good approximation of the arcade landscape, with jagged mountains, deep caverns, and enemy bases. Also present are the familiar opponents zooming up to send you to your doom.

In the green cavern are the indestructible, bouncing red UFOs, a problem for even the most experienced of pilots. Elsewhere you will encounter the purple lamps and the vicious white zoids.

Should you survive all five sheets, you will arrive at your ultimate goal - the enemy base.

Scram-20 is an exciting program, but does have one drawback. It is so fast that it might take you years to reach your destination.