Talk:Serious Mode/@comment-33087291-20151125025814/@comment-27290894-20151126021339

During I think, the True Pacifist route, if you drop Undyne's letter and go back to her she'll give you Undyne's Letter EX, the EX is mostly a fancy term for "This is better than the last one" and you cannot drop it because it is "too powerful to drop" I believe.