Henkei Shita are a group of large, cyclopean creatures with mouths in their stomachs. They come in 7 different colors and mainly reside in The Footprint Path. There is another one in Hell who has a 1 in 256 chance of teleporting Madotsuki to the Footprint Path when stabbed with the Knife effect.
Speculation
Henkei Shita largely resemble a beheaded pregnant woman. This could possibly be connected to Takofuusen, who greatly resembles the symptoms of a birth defect known as "TRAP sequence". They may also be related to the Severed Heads, one of which is a woman's head.
Instead of being pregnant, they could also simply be interpreted as being fat. This could connect to the Fat effect and other themes of body dysphoria and identity in the game. It should also be noted that the Fat effect was originally obtained in Hell, where a single Henkei Shita resides.
Gallery
Brown, blue, and green Henkei Shita in Footprint Path
Orange, pink, and aqua Henkei Shita in Footprint Path
Red Henkei Shita in Hell
An unnamed character from the Official Manga that greatly resembles Henkei Shita
