- For the TV episode, see Muckfoot (episode).
Muckfoot is a fairly tall, simian-like creature with a low-set head. He is muscular with a thin waist, thick arms, a face that looks like a monkey's, thick eyebrows, and black, horizontal pupils. He also has pink skin and is covered in slimy, light green fur everywhere, except on his hands and face. He especially has long and thick fur on his head, making it seem like he has a beard and a dreadlock-like mane. He also wears vines on his body. Depictions indicate he has thumbs on his feet as well.
Muckfoot's origins are unknown; Tails has theorized that he is the missing link between animals and animal people. According to legend, Muckfoot roams a secluded jungle on Seaside Island, leaving behind mossy footprints wherever he goes.
When Tails got a photo of what appeared to be Muckfoot, Muckfoot Mania arose and hunts for the creature were conducted. That all ended when Tails revealed to the public that his photo was wrong. Unbeknownst to everyone, however, the real Muckfoot later dropped by the Village Center, where the creature found a Muckfoot cap and put it on.
- Muckfoot is a parody of Bigfoot.