Board Thread:General Discussion/@comment-5413572-20160521065337/@comment-26347196-20160521133600

One small thing I notice is that Sans and Papyrus have very different skeletal structure, both of which may hardly define a standard skeletal system of the humans (i.e Sans and Papyrus' heads). However, if we assume humans have different body shape (given Undertale is a fantasy world), we might gloss over this fact.