Mō-Mō

was a three-eyed cow yōkai that belonged to Tōtōsai. He possessed the ability to fly and teleport via lightning. He was one of the two yōkai in the series that was shown to be an herbivore (the other being A-Un). His hide also seemed to be somewhat resilient, as Tōtōsai and the others took shelter behind him when Inuyasha first used the Kaze no Kizu against Sesshōmaru.

Mō-Mō's three eyes could see things far away, even into other dimensions. Tōtōsai was able to show the final battle between Inuyasha and Sesshōmaru by hitting Mō-Mō on the head with his hammer, causing the fight to be displayed in real time from Mō-Mō's eyes like a film projector.