
An alien UMA allied with the Serpo, the Flatwoods Monster is a hulking, sumo-like creature that hounds Momo and Okarun for their banana organs during the Turbo Granny Arc. Named for a famous West Virginia sighting, it meets its end when Momo restores a torii gate's talisman.
Built like a sumo wrestler, this ten-foot (three-metre) alien sports a swollen belly and thick, powerful limbs, its head modeled after a nutcracker doll. Striation-like lines run the length of its body, which is draped in a patterned tsuna and topped by a distinctive leaf-shaped ruff. When it loses its right arm after a hand meets the ground, polka-dotted legs erupt from its torso to keep it upright.
It carries out its mission to collect the pair's banana organs with dogged, almost robotic obedience, branding Momo and Okarun dishonorable for breaking their promise to the Serpo. Beyond merely looking like a sumo wrestler, it behaves like one, and fittingly its undoing, a hand touching the ground, mirrors the very rule that loses a sumo bout. Even then it fights on rather than yield, sprouting fresh legs to stay balanced.
The being first turned up around the West Virginia community of Flatwoods, within Braxton County, which earned it its name; it later crossed to Japan and was reported in Yamanashi Prefecture. After Momo and Okarun slip away from the Serpo, the monster is sent to claim their banana organs. Because Momo had earlier peeled the protective talisman off her torii gate to admit Okarun, the alien too can step onto the property; it rings the bell that tolls for evil spirits and, with Empty Space walling off any escape, floods the area with toxic mist and demands the organs.
Okarun, transformed and granted Turbo Granny's speed while Momo's powers hold his curse in check, tears every finger off its left hand. It then loses its right arm to disintegration when Momo slams his body groundward, exploiting the sumo weakness, yet steadies itself on new legs. The creature grabs Momo, hurls her against the wall by the torii, and rains down blows, but she had baited the beating to punch a hole leading outside the gate. From there she draws it through and resets the talisman, reducing the Flatwoods Monster to ash.

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The Flatwoods Monster is an alien UMA allied with the Serpo, a hulking, sumo-like creature that hounds Momo and Okarun for their banana organs during the Turbo Granny Arc.
In Dandadan the Flatwoods Monster floods an area with toxic mist and attacks with its bulky, powerful sumo-like body. When it loses its right arm, polka-dotted legs erupt from its torso to keep it upright so it can fight on.
The Flatwoods Monster is named for a famous sighting near the community of Flatwoods in Braxton County, West Virginia, where the being first turned up. It later crossed to Japan and was reported in Yamanashi Prefecture.
The Flatwoods Monster is a ten-foot alien built like a sumo wrestler, with a swollen belly, thick limbs, and a head modeled after a nutcracker doll. Striation-like lines run its body, which is draped in a patterned tsuna and topped by a leaf-shaped ruff.
Momo baits a beating near the torii gate to punch a hole leading outside its boundary, then draws the creature through and resets the protective talisman. Restoring the talisman reduces the Flatwoods Monster to ash.
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