Ridley's Lair

Description
Ridley's Lair, also known as Ridley's Hideout, is an area on Zebes. It appears in Super Metroid as the part of Norfair, commonly called Lower Norfair and in Metroid: Zero Mission as its own area simply called "Ridley."

Location
It is below Norfair, and is thus quite deep into the crust of the planet. This is the lowest you can get under the crust on the planet Zebes. The hideout was designed by the Space Pirates and built for Ridley himself, and therefore most creatures found are robotic. You can also see Space Pirates around this area.

Rewards
In Super Metroid, you do not get an award, rather than you see the metroid capsule the Ridley had carried back to Zebes from the research station and Ridley's statue "dies". In Metroid: Zero Mission you are supposed to get access to your screw attack, however it is fairly easy to get it early.You will need the speed booster to get it early, though.