The Core is one of the final areas of Undertale, following on from exploring the Hotlands. The following is designed to be played as part of a complete Pacifist guide - in short, going through the ...

To complete the puzzle, players must play the first seven notes of a particular song. While the plaque nearby says that the first eight notes are required, as of update 1.001, this is no longer the ...

This page is part of a neutural walkthrough for Undertale. It is recommended you complete a pacifist run first using our Pacifist Walkthrough if you want to experience all the endings. This page will ...