Yoshi

Yoshi is a recurring character in the Super Mario series, and the main protagonist of his own Yoshi series. He's a frequent ally to Mario, assisting him since he was a baby as seen in the Yoshi's Island games. His appearance in Super Mario World was met with mass approval, leading to him frequently appearing in other Mario games and spin-offs.

Yoshi cameos in Super Mario 64 on top of Princess Peach's Castle. Upon getting 120 stars, Mario can use the cannon to shoot himself onto the roof of the castle. Upon talking to Yoshi, he will grant you 100 lives and a specialised triple jump as a reward for fully completing the game.

He also appears as the first playable character in Super Mario 64 DS, woken up by Lakitu when the Mario Bros. and Wario go missing. He, and other coloured Yoshis, are the only playable characters in the game's multiplayer mode.

Trivia

 * The dialogue Yoshi has in Super Mario 64 has a typo.