Nemo is an aquatic version of the Jeff Minter game Gridrunner. You control a ship just off the coast, firing harpoons up the display at more or less anything which gets in the way. Shark fins move back and forth through the water, making their way down screen centipede-style. An indestructible land crab bounces diagonally around the display, while electric eels patrol the border of the screen, selectively electrifying sections of the water. Fast-moving blue mines zoom up screen towards the sharks.

The display is a garish aerial view, with waves lapping up and down in the green sea, a yellow beach and orange land. Your five ships, which look suspiciously like laser-bases, can move anywhere - even on land. You must avoid hitting the moving objects, and harpoon all the sharks, to move on to a stretch of still move heavily infested coastline.

Nemo uses a lot of character graphics; this permits a large number of moving objects but forces rather jerky motion, although the waves are animated very cleverly. Sound effects are simple but adequate; the game is quite addictive, but it is a shame that - yet again! - Continental has been unable to come up with a genuinely original program.

S.N.G.