Blablanadon

Blablanadon is a pterosaur-like creature who helps Mario and Luigi get to the top of Hoohoo Mountain in Mario & Luigi: Superstar Saga. In the beginning, Blablanadon is absent. Instead, the brothers have to hike up to the top of the mountain where they find the Blablanadon hatching a large egg he found. The egg actually turns out to contain Dragohoho, who attacks the brothers. Dragohoho, it turns out, is really Prince Peasley changed by Fawful's magic. When Dragohoho is defeated, Prince Peasley reverts to his usual self. After that point, Blablanadon offers to fly the Mario brothers to the top of Hoohoo Mountain at any time. After the Mario Bros.' quest in Joke's End, Bowletta attacks the Beanbean Kingdom from Bowser's Castle. Mario and Luigi have to find Blablanadon and hitch a ride on him to reach Bowser's Castle and back when they escape while Prince Peasley detonated the castle.

Trivia

 * Blablanadon's name comes from a portmanteau "blah blah blah...", a phrase used to mock incessant talking, and "Pteranodon", the name for a type of pterosaur (a related reptile to dinosaurs) not unlike Blablanadon.