Talk:Eight Humans/@comment-27159162-20151204224135/@comment-27370795-20151209090546

Actually, Undyne's attacks are yellow, cyan, and red.

SPOILERS FOR MERCILESS RUN

In the Merciless Run, you find out that she can generate her own determination. When you kill her, she actually melts, like the Amalgamates, from having more determination than her monster SOUL can handle.