While the bio above explains most of it, I'll just restate a few things. This is Cavelight, he's a precious and kind bean, and probably Nacl's kindest creation ever. He's a clone made out of spare parts that Nacl claims to have 'found lying around' during one of his visits to Thunderdrop City, a very dangerous city planet that very few dare to travel to that has produced many criminals, criminals like The Other End's leader and supposedly Nacl himself. Either way Cavelight is one of Kirby's friends and when he's not exploring Popstar and enjoying his freedom, he's helping the Starwarriors.