Rosetta (Rosalina in NA/EU) is not a playable character in Mario Kart Wii. She debuts in Super Mario Galaxy (2007, Wii) as a major NPC, and becomes playable in Mario Kart Wii's successor: Mario Kart 7 (3DS, 2011).
| Game | Platform | Year | Unlock Method |
|---|---|---|---|
| Super Mario Galaxy | Wii | 2007 | NPC (story, observatory guide) |
| Super Mario Galaxy 2 | Wii | 2010 | NPC (World 1, Starship Mario) |
| Mario Kart 7 | 3DS | 2011 | Unlock: Mirror Mode Star Cup 1st place, or 4,950 coins |
| Mario Kart 8 / Deluxe | Wii U / Switch | 2014 / 2017 | Base roster (MK8) / Unlock: Random (Deluxe) |
| Super Mario 3D World | Wii U | 2013 | Playable (World Star / Champion's Road) |
| Super Smash Bros. 4 / Ultimate | 3DS/Wii U / Switch | 2014 / 2018 | Playable Fighter (Luma mechanic) |
24 characters: Mario, Luigi, Peach, Daisy, Yoshi, Baby Mario, Baby Luigi, Baby Peach, Baby Daisy, Koopa Troopa, Dry Bones, Toad, Toadette, Wario, Waluigi, Donkey Kong, Diddy Kong, Bowser, Bowser Jr., King Boo, Dry Bowser, Funky Kong, Rosalina? No. Mii (custom).
If you want to race as Rosalina, play Mario Kart 7 (3DS), Mario Kart 8 Deluxe (Switch), or Mario Kart Tour (Mobile).