Norfair

Norfair is a volcanically-active and cavernous area on planet Zebes and is home to a large number of molten enemies. Samus is unable to access virtually any of Norfair's key points without the Varia Suit upgrade, which protects from this area's searing heat. The extreme heat in the pools of magma scattered throughout this region will still cause damage unless Samus possesses the Gravity Suit. Norfair is the lowest part of the Space Pirate fortress on Zebes. Besides Tourian, the lower part of Norfair is probably the most dangerous place on Zebes, and home to Ridley's Lair, in which Ridley resides.

Metroid Zero Mission Manual
"This is a region of intense heat generated by subterranean magma."

Enemies

 * Alcoon (Super Metroid only)
 * Boyon (Super Metroid only)
 * Bug Larva (Metroid: Zero Mission only)
 * Cacatac (Super Metroid only)
 * Dragon
 * Fune (Super Metroid only)
 * Gamet
 * Geruta
 * Holtz
 * Kago (Super Metroid only)
 * Kiru Giru (Metroid: Zero Mission only)
 * Magdollite (Super Metroid only)
 * Mella
 * Multiviola
 * Nahime
 * Nova
 * Polyp (Metroid/Metroid: Zero Mission only)
 * Puyo (Super Metroid only)
 * Red Space Pirate (Super Metroid only)
 * Ripper
 * Ripper II
 * Silver Space Pirate (Super Metroid only. In Metroid: Zero Mission they are present in the Space Pirate Mother Ship)
 * Squeept
 * Tangle Vine (Metroid: Zero Mission only)
 * Tripper (Super Metroid only)
 * Waver
 * Winged Ripper (Metroid: Zero Mission only)
 * X-45G (Metroid: Zero Mission only)
 * Yapping Maw (Super Metroid only)

Bosses

 * Bug Larva (Metroid: Zero Mission only)
 * Crocomire (Super Metroid only, though his sprites appear in the code for Metroid: Zero Mission)
 * Ridley (Super Metroid only. In Metroid and Metroid: Zero Mission, he has his own area)

Metroid

 * 12 Missile Tanks
 * 1 Energy Tank
 * Ice Beam
 * Wave Beam
 * Screw Attack
 * High Jump Boots

Metroid: Zero Mission

 * 13 Missile Tanks
 * 2 Super Missile Tanks
 * 1 Energy Tank
 * 1 Power Bomb Tank
 * Ice Beam
 * Wave Beam
 * High Jump Boots
 * Screw Attack

Super Metroid

 * 15 Missile Tanks
 * 1 Super Missile Tanks
 * 4 Energy Tanks
 * 3 Power Bomb Tanks
 * Speed Booster
 * Ice Beam
 * Wave Beam
 * High Jump Boots
 * Screw Attack
 * Grappling Beam

Other Appearances
Norfair is a playable stage in the Wii title, Super Smash Bros. Brawl. Apart from the five main floating platforms, the stage emphasizes Norfair's hostile environment of the games by featuring a lake of lava below that periodically rises and falls to engulf it, creating a hazard for players who fall off. Walls of flowing lava can also appear from the sides, while waves of lava will come in from the back. During exceptionally large waves, a small safe room will appear that players must scramble into before the wave reaches them. The design for this safe room is similar to the many doors featured in the Metroid series and Super Metroid in particular.

Gallery
File:Norfair nes.jpg|Norfair as seen in Metroid for the NES. File:Samus aran in norfair super metroid.jpg|Samus and a Dragon. Image:Norfair.jpg|Norfair as it appears in Super Smash Bros. Brawl.