Restricted Zone

The Restricted Zone is a top secret location within the Biologic Space Laboratories research station that required authorisation to enter. During the events of Metroid Fusion Samus Aran forced her way into the restricted zone with the recently acquired Wave Beam, it is there that she found her way into the restricted laboratory, a series of rooms in the restricted zone where Metroid breeding and research projects were being carried out, unbeknownst to Samus.

In M.U.G.E.N, the Restricted Zone has been created by Enscripture, using sprites of several rooms in the restricted laboratory from Metroid Fusion that have been edited to make a large, singular room.

Enscripture's version
Enscripture's version uses sprites from Metroid Fusion of the rooms that make up the game's restricted laboratory, albeit with some editing to combine the sprites of multiple rooms into a single room; due to the aforementioned combining of the sprites, the stage has a vast amount of horizontal room to fight in, as well as plenty of vertical room to allow for battles with flying combatants. Many Metroids can be seen flying around inside a machine that generates flickering forcefields at the stage's start position, though the flickering of the red forcefield is incredibly rapid and may cause seizures in people with epilepsy; on the right of the tage's starting position is various machinery that pulsates a with a blue glow, while on the left side is four statis tanks containing Metroids as they appear through various stages of their life cycle, though only characters with substantial jumping capabilities will be able to scroll the camera vertically enough so that the two higher statis tanks can be seen. The stage only has a couple of minor issues, the first being that the camera will move upwards the instant a character leaves ground level, the second being that the sprites of the forcefield generator and the statis tanks on the left of the stage fall short of the stage's upper boundary, though this is less of an issue due to it only being noticeable in high altitude battles.