|This article is about the Zero Suit itself, a suit worn by Samus. For Zero Suit Samus, the character, see Zero Suit Samus.|
The Zero Suit is what Samus wears under her Power Suit and other suits. The suit was originally featured in Metroid: Zero Mission, which got its name from the additional portion of the game where Samus is only in her Zero Suit. The suit soon made a second, albeit brief, appearance in Metroid Prime 2: Echoes, released later the same year. The Zero Suit has been shown at least once in every Metroid game since Zero Mission. So far, the player has only been able to control the Zero Suit in Metroid: Zero Mission and Metroid: Other M. Select installments of the Super Smash Bros. series also feature Zero Suit Samus as a playable character.
The Zero Suit is a tight, full-body, blue suit emblazoned with Chozo markings. It also has light red, glowing markings on its back which seem to serve some purpose.
Prior to 2004, Samus had always been pictured in a bikini or in underwear when not wearing one of her suits or in the event of the suit exploding.
Metroid: Zero Mission
In Metroid: Zero Mission, Samus loses her previously gained abilities and crash lands in a Space Pirate base. She is left with nothing but her Zero Suit and the non-damaging Paralyzer. Although in Brawl Samus in her Zero Suit becomes more agile, in Zero Mission Samus loses many of her abilities and is no more agile than she was before. In fact, losing her Suit's jumping capabilities made her unable to reach certain heights. Samus stays in her Zero Suit until she fights the unnamed boss of Chozo origin.
Metroid Prime Series
In each of these appearances, Samus is not playable while in the Zero Suit.
Metroid: Other M
In Metroid: Other M, Samus is seen wearing the suit in the beginning cutscene, as well as in a couple of the flashbacks. At the end of the game, she deactivates her power suit upon locating Adam's helmet. She is then forced to escape the Bottle Ship without her Power Suit. She is again equipped with the Paralyzer, and she can slide underneath objects since she cannot use her Morph Ball. Once Samus is in her Zero Suit, she cannot regain her Power Suit. In said game, the suit receives an updated appearance, and is now a more metallic blue, and has larger heels. In addition, unlike in its appearances in Metroid Prime 3: Corruption and Super Smash Bros. Brawl, the suit no longer goes in between Samus' breasts. Samus also carries her Paralyzer in a black holster on her leg. It is also worth noting that in the flashback scenes, Samus is seen wearing harness pants over her suit for unknown reasons.
Super Smash Bros. Brawl
The Zero Suit also appears in Brawl, though non-canonical, in a more prominent role. Zero Suit Samus, a playable character that Samus can turn into using her Final Smash, uses the suit to move quickly with great agility. With the Zero Suit, Samus is able to jump higher and further than a Power Suited Samus. She can rematerialize her Power Suit using her Final Smash in this form.
Super Smash Bros. for Wii U and 3DS
The character Zero Suit Samus, wearing the Zero Suit, appears again in the two sequels for Brawl. She is a completely separate character from Samus in her Varia Suit and cannot switch between the two forms during gameplay.
Super Smash Bros. Ultimate
The character Zero Suit Samus appears again as a separate fighter from Samus in her Varia Suit. This is her third appearance in the Super Smash Bros. franchise and second time as a completely separate fighter.