The Fake Genie is the initial villain of the videogame Dark Cloud, and as the name suggests, is not the real genie that Flagg hoped to release. It also makes an appearance in Dark Cloud 2/Dark Chronicle as the final boss of the Zelmite Mines.
Dark Cloud 2/Dark Chronicle
The Fake Genie (referred to as the Dark Genie in this game) is the boss of Chapter 8, a post game dungeon where the player must acquire Zelmite; a fuel for the Blackstone One. The Dark Genie revived Flotsam and gave him a new body after he was defeated earlier on in the story.