I'll update this first post to serve as a FAQ, and if you have any other questions about Samus, please feel free to ask here and myself or someone else will do our best to help you out!
Q: How do I unlock Zero-Suit Samus (aka ZSS, Zamus)?
A: ZSS is just an alternate form of Samus, similar to how Sheik is an alternate form of Zelda. Since Samus is part of the initially available cast of characters, you don't need to unlock anything in order to play as Samus in her zero-suit.
Q: How do I play as Zero-Suit Samus?
A: Besides Samus' Final Smash which will switch her in her suit of armor to zero-suit (and vice-versa), you can start a match as ZSS by holding down a shield button between the character select screen and the stage selection menu. This can also be done for controllers in the slot of a CPU opponent to have them start as ZSS.
Additionally, you can also shed your armor at any time by hitting up-down-up on the d-pad (very quickly). If you have a FS charged, you can do this transformation and still have it to use as ZSS. The only way to transform from ZSS back to Samus is through her Final Smash. See this Dojo update for more.
Q: What about in tournament mode, can I still play as Zamus?
A: As explained in ZSSamus selectable in Tournament mode with C-stick: "You have to go over Samus' space and push the C-stick in any direction to change Samus' space into Zamus'. Then you can pick colors normally with X and Y." For wiimote only, the button is - (minus). For wiimote and nunchuk, the button is C (above Z on the nunchuk).
Q: How does her down-B work?
A: Right after you start her down-special, Zamus will perform her special jump. You can choose which direction she jumps in with the control stick (left versus right). Similarly, you can choose the direction of her attack as well, by holding left or right when you hit A. Zamus can walljump from this down-special jump, which results in continuing / restarting the move from the wall, and away from the wall.
Q: Where do I talk about Armored Samus?
A: For conversation specific to armored Samus, that should be separated from Zero-Suit Samus conversations, use the Samus character specific forum
Q: What about _______?
A: Ask here, and someone will help you out!
Q: How do I unlock Zero-Suit Samus (aka ZSS, Zamus)?
A: ZSS is just an alternate form of Samus, similar to how Sheik is an alternate form of Zelda. Since Samus is part of the initially available cast of characters, you don't need to unlock anything in order to play as Samus in her zero-suit.
Q: How do I play as Zero-Suit Samus?
A: Besides Samus' Final Smash which will switch her in her suit of armor to zero-suit (and vice-versa), you can start a match as ZSS by holding down a shield button between the character select screen and the stage selection menu. This can also be done for controllers in the slot of a CPU opponent to have them start as ZSS.
Additionally, you can also shed your armor at any time by hitting up-down-up on the d-pad (very quickly). If you have a FS charged, you can do this transformation and still have it to use as ZSS. The only way to transform from ZSS back to Samus is through her Final Smash. See this Dojo update for more.
Q: What about in tournament mode, can I still play as Zamus?
A: As explained in ZSSamus selectable in Tournament mode with C-stick: "You have to go over Samus' space and push the C-stick in any direction to change Samus' space into Zamus'. Then you can pick colors normally with X and Y." For wiimote only, the button is - (minus). For wiimote and nunchuk, the button is C (above Z on the nunchuk).
Q: How does her down-B work?
A: Right after you start her down-special, Zamus will perform her special jump. You can choose which direction she jumps in with the control stick (left versus right). Similarly, you can choose the direction of her attack as well, by holding left or right when you hit A. Zamus can walljump from this down-special jump, which results in continuing / restarting the move from the wall, and away from the wall.
Q: Where do I talk about Armored Samus?
A: For conversation specific to armored Samus, that should be separated from Zero-Suit Samus conversations, use the Samus character specific forum
Q: What about _______?
A: Ask here, and someone will help you out!