User blog comment:MarthBoy606/Season 3 Hints/@comment-25968390-20160315223108/@comment-25968390-20160315225306

Oh. I thought you were referring to Chara vs ??? at first... Let's see... What can die in one hit... Hmmm...

Maybe Sans vs Slime (DRAGON QUEST)? They have the similarity that they have one hit point...