It's been some time since the Seiddab invasion, and humans have successfully repelled the aliens from Earth. Now the human defenders have turned to eliminating all traces of the Seiddab invasion force. You've been chosen to fly a Z5 Luna Hover Fighter against the Seiddab base on the moon. Your mission is to destroy the Seiddab command base, but to do that you'll need to penetrate its defenses. It's a tough mission, but you're the only one who's good enough for it, and you can't fail.

Lunattack! is a continuation of 3D Seiddab Attack and takes place from a first-person view inside the cockpit. You must pilot your hover fighter through the three Seiddab defense zones to get to the base. The first zone is guarded by enemy tanks, the second by mines, and the third by homing missiles. You can also find Seiddab hover fighters patrolling all three zones. The tanks and hover fighters will try to shoot you down, the mines will detonate against your hover fighter, and the missiles will lock on and attempt to track you. If you manage to breach all three zones you must make strafing runs on the command base until it's destroyed.

You have missiles and lasers available, and your hover fighter will shoot the best weapon automatically depending on what you're targeting. In order to survive you have to use your weapons wisely while avoiding enemy attacks. If you take too much damage, or if your hover fighter runs out of fuel, you will crash and must restart the game. ~ Kyle Knight, All Game Guide