Phaaze is a sentient planet that is the source of the chemical Phazon. It is the Bigger Bad of the videogame trilogy Metroid Prime because it is where the creature Metroid Prime originates from. The Phaaze is an organism of gigantic dimensions, planetary dimensions to be precise, and it spawns Leviathans within its wombs every century. Despite planet Phaaze being the Bigger Bad, Dark Samus was powerful enough to take full control of it and direct all of its actions.