Gecko is a ship in the 1980's computer game Elite. The Gecko is one of the so-called Pack Hunters, which means you'll never encounter one of these on their own. Pack-Hunters are space pirates, and they want to your precious cargo more than anything else. The Gecko carries no missiles, it earns you 5.5 CR in bounty and it never ever carries anything you can loot after blowing it away.

It's also slightly faster than your Cobra Mk I, meaning you cannot outrun it, only blast it with whatever laser you've got for the moment or rely on your hard-earned missiles.