Board Thread:General Discussion/@comment-26980570-20160320192450/@comment-28026157-20160322202114

I think it's assumed that Chara's SOUL was destroyed along with Asriel when he died, or otherwise was sent to whatever afterlife exists within Undertale.

You might be right about the machine being something that detects the anomolies, though. In that case, perhaps Sans broke it on purpose. In his eyes, what would be the point of such a machine if there was nothing he could do to stop the anomalies from occuring?

As for the reason for the creation of Sans and Papyrus, you might be onto something there. What if he was attempting to create beings with the ability to SAVE and RESTART, but failed? Sure, he had a couple super-powerful beings, one of which is allegedy able to teleport, but he couldn't recreate the effect of a red human soul without creating an unstable being like Flowey.