Crateria

Crateria is an area located on planet Zebes that appears in both Metroid: Zero Mission and Super Metroid, and is notable for being where Samus lands her gunship during the events of said games. Much of Crateria is situated on the surface of Zebes, with the only parts of it descending into the underground regions being from Super Metroid, where the remains of old Tourian can be found.

In M.U.G.E.N, Crateria has been made into a stage twice by MackX and once by !E. Both of MackX's versions use spites taken directly from Super Metroid, with one version being where Samus initially lands on Zebes and the other being where Samus has to escape from it, while !E's version, named Planet Zebes, is merely based off the area where Samus lands her gunship in Super Metroid.

MackX's first version
MackX's first version of Crateria uses sprites ripped directly from Super Metroid in order to emulate the appearance of the landing site from said game, complete with falling rain and the occasional flash of lightning; Samus can be seen standing on top of her gunship to the right of the stage's starting position, with the gunship gently hovering up and down. The stage's camera allows for a fair amount of horizontal movement, but barely moves an inch vertically when a character jumps, ensuring that characters using a Super Jump will rise out of sight above the game window, furthermore, the stage's high z-offset places them almost at the very bottom of the game window, so certain gauges might drop out of sight.

MackX's second version
MackX's second version of Crateria is similar to the first version in that it uses sprites ripped directly from Super Metroid, but depicts a self-destructing Zebes during the game's escape sequence, which includes elements such as large, explosive flashes occurring somewhat frequently and the ground that combatants stand on shaking violently while small explosions and smoke seep out from below the surface of the planet. Samus' gunship can be seen to the right of the starting position, though by going to the very left of the stage and waiting for a small period of time, Samus can be seen emerging from the blue door and running towards her gunship, at which point she will jump into it and leave the planet for the rest of the match. It is worth noting that this second version allows for even more horizontal movement than the first version, but still has the issue of a high z-offset value placing the combatants nearly at the bottom of the game window, and while the camera does have more vertical movement, it still doesn't go high enough to allow for characters using a Super Jump to still be visible on screen.

!E's version
!E's version of Crateria takes place in the area where Samus lands her gunship during the events of Super Metroid, with the gunship in the near background overlooking the fight and heavy rain pouring down onto the battlefield. Combatants start on an 'elevated' platform which collapses shortly after the match starts, crumbling into nothing when it crashes into the ground below; not long after the platform crumbles, Samus' gunship eventually catches up with the fight and continues to hover in the near background, with both the gunship and the combatants remaining on the lower ground for the rest of the match. On the left side of the lower ground is a green door that would lead deeper into the underground parts of Crateria in the source game, while on the right is a Chozo statue that is holding a glowing blue orb. The stage camera follows any character that does even the slightest vertical movement, though it also tries to keep characters with Super Jumps as centred as possible.