Board Thread:General Discussion/@comment-27952307-20160430044308/@comment-5956954-20160430160203

PancryPancreas5 wrote: When we kill Toriel or Asgore they turn to dust, and what is left is their SOUL wich soon breaks into two, but they are Monsters and their soul can't persist long after death, but we still attack their bodies, not their SOULs unlike monsters who aim for our SOUL instead of a body. I already theorised that in order to get their SOUL, a Human needs to die from a non-magical attack like Chara did, but all lethal attacks in Undertale are magic based, aimed for our SOUL...

That bridge puzzle Papyrus prepared for us might be actually deadly to us (since it's not magical and will break our physical body rather than SOUL), but him being Papyrus decided not to... Could those actually cause the game to be over forever, if he relesed those weapons on us?

Yes.