Board Thread:General Discussion/@comment-26849575-20160315015552/@comment-13682699-20180127144522

33Nepeta wrote: Fastrthnwind wrote: We need Asgore's SOUL in order to absorb it so that we obtain enough power to pass through the barrier and escape the underground.

You need a human and a monster SOUL combined to escape. As the only human, you possess a human SOUL. In order to acquire a monster SOUL, you would either need to take a SOUL from a living regular monster, which would take extreme amounts of power, or you could kill Asgore and take his SOUL since, as a boss monster, his SOUL will actually survive his death for a short period of time. The “absorbing killed monsters souls” thing apples to all Boss Monsters rather than just Asgore alone. Yes, that means not just Asgore, but Toriel as well since she is also a Boss Monster. However usually we cant get to her because she is locked in the Ruins.