Yokkī

Yokkī (ヨッキー) is a sentient Yoshi Cookie (the one shaped like a Yoshi's head) that appears as an ally in the Super Mario Land 2: 6 Golden Coins story arc in Super Mario-kun.

While collecting the 6 Golden Coins, Mario and his new partner Carrot receive a package from Yoshi full of food as a thanks for helping him save Dinosaur Land from Bowser. After tossing away the numerous canned enemies that Mario dislikes, Carrot finds a big Yoshi Cookie and decides to keep it in her leaf-hair. Later, while exploring the Turtle Zone, the duo is attacked by the small octopuses and a Shark, but in Mario's aid comes the Yoshi Cookie, which not only is revealed to be alive, but also drains the water of the arena, leaving the enemies gasping for water. With that, Mario welcomes the new partner on board, calling him Yokkī. After completing the Turtle Zone, Yokkī does not reappear in the rest of the volume, in which Carrot and Mario explores two more zones, hinting that maybe Yokkī was planned as a temporary partner, however, from the next volume, it becomes a staple of the arc.

Yokkī is mostly used by Mario as a "human" shield since, just like Yoshi, Yokkī loves to devour everything in his path. Sometimes, he even uses it as a shelter by hiding in its mouth from attacks and sometimes as a boat to cross the lava. He does not speak much, but his personality is just like Yoshi: childlike and silly.

In volume 8, Yokkī is very scared of the perils hiding in the Pumpkin Zone. During the battle with the Witch, it gets crushed, alongside Carrot, by two Leaping Lids, fusing them together. While Bunny Yokkī is keeping distracting Witch, Mario steals her wand and defeat her.

In volume 9 is revealed that Mario keeps the collected Golden Coins in Yokkī, breaking it like a piggy-bank (and building him back, sometimes in the wrong way) whenever he needs to show them off. Tatanga discovers this and, using one of the Pagosu's lasers, grabs Yokkī, breaks it and steals the Coins. After reaching the alien, he firstly tries to use Yokkī like a human shield as well by hiding in it, making it suffers the attacks of its allies.

In the tenth volume, Yokkī is used to skip and protect Mario and Carrot from the traps and obstacles of Wario's Castle. Yokkī is then the only one to help Mario during the final battle, since Carrot is hypnotized by Wario into aiding him. Yokkī eats the Goombas in the room, and an angry Wario turns him into a pig. Later, after the entire Mario Land and Luigi arrive to see the final battle, Yokkī pleads the latter to help Mario. He pulls out an Item Box with a Lightning in it and shoves it into Yokkī's mouth, then Mario grabs the electrified Yokkī and tosses him at Wario, defeating him and destroying the castle with a huge electric explosion. Mario will then use Hippo as the base of his new castle, where Carrot and Yokkī will live. In the last panel, Yokkī is seen munching on Hippo's ear-tower.