Fan Nickname: A handful of rooms in Super Metroid, such as "Noob Bridge" (which named a trope) in Green Brinstar, and "Mount Doom" in Black Maridia.
Serendipity Writes the Plot: The appearance of the Varia Suit in Super Metroid and onwards is the result of the Game Boy's lack of color. In the original NES game the Varia Suit was denoted by a Palette Swap. Since the Game Boy was black and white, the suit itself became physically different after being obtained in Metroid II. The design was retained for this game and the rest is history.