Asriel Dreemurr is the true final boss of Undertale, coming after you've explored the bonus True Laboratory section. The following boss comes at the end of a complete Pacifist playthrough - in ...

Asriel is the son of Toriel and Asgore - someone might want to get them a baby naming book - and although he only properly appears in the true pacifist ending, you do get to know him throughout in ...