Zero Suit Samus

"Is that all?"

- Zero Suit Samus

Zero Suit Samus is an alternate form of Samus; she is released from her Power Suit by using her Final Smash in Super Smash Bros. Brawl. She can also be selected at the start of a match by pressing a shield button on the character selection screen. During battle, Samus can become Zero Suit Samus any time by quickly performing the Taunts ↑↓↑.

When Samus finishes her Final Smash, the Zero Laser, the force of the beam is so strong it causes the Power Suit to fall off, which was seen in the E3 Trailer. Once this happens, she is left only in her Zero Suit. Players can pick up and throw the pieces of her armor, which now act similarly to items. Zero Suit Samus is more swift and agile than her armored form, though, lighter and easier to KO. She can now also use a gun that transforms into an energy whip. Her whip also has a similar function as Link's hookshot.

Snake Codec conversation

 * Snake: Mei Ling, Samus took her clothes off!
 * Mei Ling: That's just her in the Zero Suit, Snake.
 * Snake: Without that bulky Power Suit, she's gotten a lot more agile... You know, I bet if I took off all this heavy gear, I could catch her.
 * Mei Ling: Um, yeah, you wish. Even without the Power Suit, all that training she did with the Chozo has made her a super athlete. I don't think a normal human could ever keep up. Just look at her.
 * Snake: ...Her loss.

Role in the Subspace Emissary
Samus first appears in the Subspace Emissary in her Zero Suit, infiltrating the Research Facility to retrieve her stolen Power Suit. Along the way, she finds Pikachu trapped in a power generator and frees it. Eventually, Samus tracks her Power Suit down, but was stopped by evil copies of it. She defeats them and retrieves her suit. She spends the subseqent movies she appears in, wearing standard form. When Samus is selected on the World Map, she can still be turned into Zero Suit Samus by pressing the C button on the Nunchuck or similar buttons mapped to grabbing in other control layouts.

Trivia

 * Zero Suit Samus and Falco are tho only characters to speak during all of their taunts; though she says her down taunt in a soft tone so it is hard to hear; she says "You're mine".