Board Thread:Questions and Answers/@comment-30388913-20170215173614/@comment-37563607-20190207231454

How do you know that Mad (or glad) Dummy isn't a real monster? I am pretty sure that all the ghost fam are monsters, AND have proof. You gain EXP for killing Mettaton, and he is believed to be related to Glad/Mad Dummy. Mettaton has a monster soul and is related to Glad Dummy, so he's a real monster, and all the other ghost fam are.