Geothermal Power Plant

The  is a room in the Pyrosphere in Metroid: Other M. This is where Samus encounters the fully matured form of Ridley's clone in this room (in-game experience of said game).

In M.U.G.E.N, the  has been made once by EXShadow. This stage is inspired by the Dead Or Alive: Dimensions arena version of the Power Plant. The stage also comes in both M.U.G.E.N 1.1 and Winmugen versions.

Background Music
The background music is the Geothermal Power Plant music from Dead Or Alive: Dimensions (Which in turn, is just an arrangement of Ridley's Theme) with the sound of a siren added to the mix.