Speedemountain appears as an anthropomorphic mountain with green moss growing on top of his head. He also has red, menacing eyes and a sinister smile. He holds an orange steering wheel.
Speedemountain appears to have a love for racing and enjoys holding racing competitions.
Abilities and Powers
Those he inspirits become reckless drivers.
Speedemountain first appears in EP119 where he is the host of the Yo-1 Grand Prix. He says he is pleased Nate could make it and offers him an entry to join the race. Nate accepts the offer. In a flash, Speedemountain makes all competitors' cars appear along with changing Nate into race clothes. Speedemountain motivates Nate, Whisper, and Jibanyan as the race preparations are complete. After Nate, Whisper, and Jibanyan win the race, Speedemountain gives Nate is medal.
Maunten's design is based on a pun on maunten (Japanese: 魔運転 "demonic driving") and the English mountain.
Speedemountain combines the words speed demon and mountain.