Nekidspeed is a humanoid Yo-kai with a red and black sneaker for a head. He is fairly muscular and wears a red speedo.
Those inspirited by this Yo-kai are suddenly compelled to run, and are able to do so extremely quickly without feeling exhaustion. So long as this Yo-kai is in effect, the inspirited can't seem to stop even if they want to.
Nekidspeed can be found in Breezy Hills under cars.
Yo-kai Watch Animation series
Nekidspeed appears in EP037, Inspiriting Nate's father and compelling him to race Nate while filming him at the school sports festival. Nate's father ends up winning the race, much to the confusion of all onlookers and disappointing Nate for ruining his last chance to impress Katie.
Nekidspeed was later summoned in EP136 to catch Kameppa. In that episode, it was proven that Nekidspeed can talk.