Endogeny is mute and it can only talk in punctuation symbole's. the vague shape of a large canine, with two pointed ears atop its "head" where instead of a face it only has a single orifice. Its wide body has six digitigrade legs, which form the silhouettes of five smaller canines between them. The silhouettes between its legs gain satisfied catlike faces when it can be spared. Additionally, its wet facial hole stops dripping when contented into being spareable. Endogeny displays the same excited behavior many of the game's dogs do, but seems to be unaware of the damaging nature of its enormous weight and powerful body, much like the Greater Dog. It exudes a fluid from its single orifice.