Talk:Monster Kid/@comment-27523715-20160601023411

My theory: Monster Kid is Alphys' sister.

I know, many people have seen this theroy before, but think... Chara calls them Monster Kid, so it might possible that their actual name is Monster Kid. We do not learn Alphys' last name, but it could be sought out as ''Kid. ''They are both Yellow, dinosaur -like monsters. They both like Undyne, so maybe their parents were in the Royal Guard at some point, and retired.