Board Thread:Questions and Answers/@comment-26242189-20160422234238/@comment-25444898-20160516000224

Aicilespear wrote: Tbh, I really can't explain this part, either because my brains decided enough theories, or that I wasn't really given enough canonical facts to make out of something.

GetYourFix had an approach, but I don't really want to fully believe on that part, mainly because it's kind of a whole different kind of concept that I'm not sure really ties to the game.

Other than that all six humans confronted Asgore and failed, and their souls persisted after death, I guess I can add another piece of fact that Frisk's heart didn't shatter during the battle against Asriel, but Frisk certainly wasn't dead.

EDIT: Actually, we didn't know that the six humans were fallen under Asgore. The reason I said that was that I heard Toby Fox had confirmed it. It might not be true, but it's possible. After all, Asgore has 80 attack, enough to kill a human in one blow. The reason Asgore's fight is easier is that we are the seventh (well technically eighth) human, and he doesn't really want to kill us. He tries to stop us from fighting him at least three times.