Board Thread:General Discussion/@comment-35806478-20190408161347/@comment-32182236-20190426113529

LOVE makes your stronger. And a monster with a human SOUL is already quite Mary Sueish.

Flowey was LV9999, while also being pretty much the nicest monster in the entire underground. So both factors:Power and.. Mens Rea(?) all point to a huge pile of EXP from his kill specifically.