Remember how those aliens paid Egghead a visit a few years ago leaving his house in such a mess he had to go around clearing up after them?
Obviously that wasn't un oeuf, because they're back again and this time they've abducted Egghead's favourite BBC/Electron games.
Quick witted as ever, our "dairydevil" hero managed to "scramble" aboard one of the alien rocket ships before it took off for planet Zog and hitched a ride back with the extra-terrestrials to retrieve his precious software collection. Upon arriving, Egghead managed to teleport into the underground labyrinth and that was when his problems really began...
Move Egghead around the screens leaping from platform to platform in search of the disc containing the computer games. Try not to fall too far as eggs are delicate, and avoid any green slime you may encounter. On the other hand, the green bubbles that rise from the slime are not deadly. Numerous items can be collected along the way to help Egghead in his quest. For example, a source of light will help illuminate a darkened room, and some sort of weapon might scare off some of those aliens. Once the computer disc has been located, Egghead needs to acquire some transport back to Earth.