As a very healthy and athletic female whom disregards the taste of sugar (junk food in this case), she is incredibly rude, however there are reasons behind that, so don't think she does it for fun. She acts nice around townspeople, however, very intelligent in her words when taunting and being fustraighted with her enemies.

"Oh, shut up, stupid Pigeon."

For her famous remark to refuse she is an actual Piplup.

"I. Am NOT. A Piplup!"

In PMDD, Madilyn's basic answers (Yes, no, OK.) are very bland, but they aren't Monochrome.

"Yes. No. OK."