Board Thread:General Discussion/@comment-28918734-20161210010346/@comment-24821641-20161210013230

If Frisk had died, he'd have just absorbed their soul and destroyed the world with all seven of them (The only reason he doesn't in True Pacifist is that he thinks Frisk is Chara then), so the souls wouldn't really have had time to do anything.

If they had just stayed in an endless fight, though...probably not?