Slival is a slime from Dragon Quest Heroes: Rocket Slime. He is the one of the main antagonists on the game; however, he is more suited to the role of a rival to the hero, as he occasionally challenges Rocket with the Schwarzman tank to see who is stronger. There is currently almost nothing known about him. None of his past is known, and the game offers practically no hints into his thought process. It could be possible he is from Slimenia, though no hints are given.