Movie
Description
Meganyan is a Boss Yo-kai and an enlarged form of Hovernyan, a transformation that occurred after he spent years waiting inside a storage shed. During that time, he absorbed ambient spirit power and consumed large quantities of food, which caused him to become massive.

He resembles a large, sleepy, blue cat with drooping eyes, possessing a dull pink inner ear and nose, along with a white muzzle and paw tips. His body is covered in mushrooms of various sizes. A small nozzle appears on his side in the video games, though this is replaced by a cork in his buttocks in the movie adaptation.

His primary abilities include enlarging objects or living beings by breathing a pink mist onto them, and he can shoot electricity from his nostrils. In the movie, he demonstrates the ability to create a life-size duplicate of himself that possesses nearly all of his abilities.

In the narrative of "Yo-kai Watch: The Movie," Meganyan arrives in Springdale to assist Nate Adams after Nate's Yo-kai Watch disappears and his memories of Yo-kai are erased. Meganyan uses his electrical power to restore Nate's memories. He later requests help from Nate, Jibanyan, and Whisper to remove the cork from his body, which suppresses his energy. Once the cork is pulled, he releases a large amount of pink smoke and reverts to his original form, Hovernyan.

This transformation is consistent with his video game appearances. In "Yo-kai Watch 2," he is found enlarged in a shed and reverts to Hovernyan after his nozzle is loosened. In "Yo-kai Watch 3," he regains his Meganyan form by overeating again and requires the assistance of Hailey Anne and Usapyon, eventually being put back into shape by Sgt. Burly to become Hovernyan once more.

He possesses a patient personality, having waited for decades for a prophesied individual, though he can become easily distracted from his tasks. He is also somewhat embarrassed about his Meganyan form.

His name is a portmanteau of "mega" and "nyan," the Japanese onomatopoeia for a cat's meow. His design may have been inspired by the Okubi, a yōkai known for inhabiting barns and causing inflation by blowing on things.