Planet Zebes is a planet seen in the Metroid series. It is the main setting of the first game in the series, Metroid. The surface is mostly barren and the underground is riddled with large caverns.
Planet Zebes also appears as a stage in Super Smash Bros.. The only feature is the lava, that rises about every 30 seconds and damages any players. After a few cycles, it rises so high that only the center platform, which is also the highest, is safe. Samus is always fought here in 1-P Mode.