Okay so originally in slendytubbies I think 1 or 2 the newborns have arms but are covered by their body seeing of how you know teletubbies are CHONKY! or their waist is CHOMKERZ! So then in slendytubbies 3 they had shown not having any arms then it got around to slendytubbies fan made games (Slendytubbies The Last Mistake, Slendytubbies There Coming) It showed the newborns not having arms then it just continued to people thinking the newborns never had arms