Rosalina

Rosalina (, Rosetta) is a character from the series. Rosalina is the adoptive mother of the Lumas, and is among the most powerful characters within her home series, as she watches over the universe in addition to taking care of the Lumas.

Rosalina, alongside six varieties of Lumas (including ), made their  debuts as a tag team of playable characters in Super Smash Bros. 4. They return in that capacity in Super Smash Bros. Ultimate.

Origin
Rosalina is a youthful-looking woman whose appearance highly resembles Princess Peach. She has platinum blonde hair, styled into a bang that covers the majority of the right side of her face. She is also noticeably taller than Peach, and most Mario characters in general. Rosalina's attire consists of a turquoise empire waist dress which bares resemblance to a nightgown, with tapering sleeves, a low neckline that exposes her shoulders, and a petticoat that can slightly be seen at the bottom. Her earrings and brooch display star-shaped motifs, and she wields a wand which also sports a star-shaped motif on its tip.

Rosalina debuted in , where she is a major non-playable character. She commandeers the, which visits her home planet once every century, and functions as a home for both herself and the s. Her backstory is detailed in a storybook, which she reads to the Lumas at various points during the game. The storybook reveals that Rosalina first journeyed into outer space to help a lost find his mother, which eventually led to the duo building the Comet Observatory together, Rosalina coping with the death of her own mother, and subsequently forming a new familial relationship with the Lumas as their adoptive mother.

Although Rosalina has a vastly reduced role in ', she made her first playable appearance in ', and has been playable within the  series and a number of other Mario spin-off games ever since. Her first playable appearance within the main Mario series occurred in , where she is the game's only unlockable character and can use the from the Super Mario Galaxy games.

In the Wii games, Rosalina was voiced by, but was succeeded by in Mario Kart 7; the latter reprised the role in Mario Golf: World Tour and Super Smash Bros. 4 via recycled and previously unused recordings, and is retained in Mario Sports Superstars' golf mode and Super Smash Bros. Ultimate. As of Super Mario 3D World, currently portrays Rosalina outside of the Super Smash Bros. series, with some of Kane's voice clips being repurposed for a few games.

As playable characters
Rosalina makes her first appearance as a newcomer in SSB4. In addition to her own moveset, she is allied with a Luma, who has its own moveset and can assist her with almost all of her attacks. Luma can be controlled along with Rosalina, which results in the pair adhering to the "puppet fighter" archetype, similarly to the Ice Climbers. Unlike in ' and ', Rosalina's dress sports star-shaped motifs, and her high heels are colored turquoise instead of silver.

Rosalina & Luma have a highly defensive neutral game, with Luma notably being able to shield Rosalina, and Gravitational Pull being able to render projectiles useless against them. When the pair are together, they can be difficult to approach, as one can cover the other and punish opponents when in danger. They also have good KO potential, thanks to Luma's standalone power and Rosalina's disjointed range. However, Luma can be KO'd temporarily; in addition to removing one of Rosalina's key strengths, a KO'd Luma renders two of the duo's special moves, Luma Shot and Star Bits, unusable. Rosalina herself is also tall and very light, making her easy to launch. Rosalina's recovery move, Launch Star, is long-distanced and can be angled, but renders her vulnerable because of its lack of hitboxes.

Overall, Rosalina & Luma's strengths largely outweigh their weaknesses, as they have enjoyed consistent and strong tournament results. As a result, they are currently ranked 5th out of 55 on the tier list, placing them in the A tier.

As playable characters
Rosalina, along with Luma, return as playable characters in Super Smash Bros Ultimate. Unlike in SSB4, they are unlockable characters instead of starter characters.

Trivia

 * Rosalina's classification as a lightweight deviates from her classification as a heavyweight in the  series, where she is in the same weight class as Donkey Kong, Waluigi (who became a heavyweight in Mario Kart Wii) and Link. However, Masahiro Sakurai stated on a Miiverse post that the reason for this is because of her utilizing anti-gravity, similar to Mewtwo.
 * Additionally, in the Mario Kart series, kart classes are based not only on weight, but height as well; Rosalina is classified as a heavyweight partially due to her tall stature.
 * Attendants at the 2007 Whobby Game Festival claimed to have seen an Assist Trophy of Rosalina in a demo of Super Smash Bros. Brawl. However, no evidence has been seen verifying the veracity of this claim, and there is no leftover data in the final game that indicates Rosalina was intended to be an Assist Trophy; no content from Super Mario Galaxy is present in Brawl other than a listing in the Chronicle.
 * Rosalina and Bowser Jr. are the only playable Mario characters to have debuted in the 21st century.
 * Rosalina is the first playable character to have a unique victory theme from other characters of her universe who is not an antagonist of any sort. This distinction would later be shared with Lucina, Robin, Chrom, Corrin, and Byleth.
 * Because of this, Rosalina is the only non- character with this trait.
 * In the Super Smash Bros. series, the underside of Rosalina's dress features a pattern similar to a deep blue starry sky. However, this is not the case in her home series, in which either the petticoat of her dress is seen, or it is just the underside of her dress which is the same color as the outside.
 * Despite this, she is seen wearing a petticoat in Corrin's official poster.