Talk:Neutral Route/@comment-27324846-20151210041524/@comment-27559164-20160110172900

@Doctoradventure it is actually a fact. Human souls cannot absorb human souls and monsters cannot absorb other monster souls.

And @Encyclopediabro13 in the genocide run, the mere fact that Frisk killed one boss monster grants them enough strength to leave the underground.They can leave from the moment they killed Toriel. In the neutral route, its implied that Frisk takes Asgore's already departed soul after defeating Flowey but is unable or unwilling to recapture the human souls. Frisk cannot reach the surface without a monster soul, that is blatantly said by Alphys.