Comprehensive Undertale Piano Puzzle Guide - Indie Game Culture
Semi Frequent Undertale Facts on Twitter: "* All release trailers for every version of Undertale have shown the Vent Puzzle from Hotland, it even became a constant gag for every trailer. Submitted
the piano puzzle for the legendary artifact (and dog residue) says you only need to play the first 8 notes. but the statue where you get the notes only shows the first
Steam Community :: Guide :: Sans's Impossible Puzzle (and How to Solve it)
Undertale - Waterfall explored: Piano puzzle solution and Temmie Village location | Eurogamer.net