It's amazing really. Only four years ago SPACE INVADERS machines were the latest thing, original and compulsive. I must have spent a fortune on them and still I never learnt how to get the mothership without being hit myself. Now, however, the alien invaders no longer hold sway. Newer and more colourful arcade games have taken over my affections. Or at least they had until I had a go at Micro Power's Electron Invaders and learnt that the game was as fascinating as ever.

From the moment the familiar rows of aliens started descending from the top of the screen showering destruction I was hooked again. At first they looked slow, but that was my mistake. They're as fast as ever and seem to be a lot more cunning. In an effort to avoid destruction, I spent a long time cowering under the three silos, but even that was no use as the invaders have a new weapon.

Not content with the usual rain of laser bolts, they are dropping fragmentation bombs that can penetrate beneath your silo. This may not be cricket but it certainly adds a new dimension to the game.

The graphics are excellent, the sounds and instructions adequate and the game is as compulsive and frustrating as ever. If you are an arcade game freak and you're looking for a version of invaders for your Electron then you need no look no further. But watch out for those motherships - they're deadly.