モノ飛行 (Mono Flight)
Takofuusen has a 1 in 3600 chance of appearing, which is rolled approximately twice every second. This translates to an average wait of thirty minutes between appearances, so there's a good chance of seeing it once or twice while exploring the area.
Unlike Uboa, there is no way to interact with Takofuusen; it merely floats across your screen accompanied by a weird sound effect.
Takofuusen resembles a large, flying, monochrome creature with a balloon-like body and two legs or arms that stick out at the bottom. Its body appears puffed up near the middle, as if swollen or muscular. Its two eyes squint in a similar way to Roary Straw, making its expression rather merry.
*Takofuusen also seems to resemble the symptoms of a birth defect known as Twin Reversed Arterial Perfusion or "TRAP syndrome", where one of a pair of birthed twins is severely malformed, generating only a torso and the lower half of a body. According to an article by the Indian journal of radiology and imaging TRAP syndrome has a 1 in 35000 chance of occurring. It only ever occurs in monochorionic (identical) twins, which is interesting because most NPCs that reside in the white desert have names starting with mono.