Undertrade
Characters have swapped places, as well as parts of their personalities, but not completely. Muffet is swapped with Sans, and still makes tea, but also loves puns. Sans has small living bones that help him out, but he still likes ketchup. Another trade would be Undyne and Papyrus, so that Muffet's younger sister is Undyne.
人物有交換的地方,以及他們的個性的一部分,但不是全部。muffet與sans交換,也喜歡雙關語。 sans有小的骨頭幫助他生活,但他還是喜歡番茄醬。另一個交換是undyne和papyrus,muffet的妹妹是undyne。