The Legend of Zelda × Mario Kart 8
From the Super Mario Wiki
The Legend of Zelda × Mario Kart 8 is one of three downloadable content packs available for Mario Kart 8, the others being Mercedes-Benz × Mario Kart 8 and Animal Crossing × Mario Kart 8. It was released on November 13, 2014.
These characters, once obtained, may appear as computer racers. Additionally, in online races, players that have not purchased the pack can see other players use these characters. All 3 of these characters make their playable debut in the Mario Kart series through this pack. In addition, Tanooki Mario and Cat Peach, despite being forms of their respective base characters, are considered separate from them in this game and take up different locations on the character select screen.
If both The Legend of Zelda × Mario Kart 8 and Animal Crossing × Mario Kart 8 are purchased, either separately or as a bundle, the player instantly receives eight new color swaps of both Yoshi and Shy Guy. Neither Yoshi nor Shy Guy appear as computer racers in these alternate colors. The following colors are included: