Here's the answer for the piano puzzle for those who don't know it -asgore : r/Undertale
Semi Frequent Undertale Facts on X: "* The sign in the Piano Room in Waterfall stays that "only the first 8 are fine" but you only need to play 7 notes. Submitted
Puzzles Guide - Undertale Guide - IGN
Waterfall Puzzles | Undertale Wiki | Fandom
Piano Puzzle - Undertale Guide - IGN
Undertale Piano Puzzle - How To Complete The Game| Guides
Statue and Piano Puzzle in Waterfall - Undertale - YouTube
Undertale - How to Easily Beat Omega Flowey
Undertale - Guide and Walkthrough - PC - By Scarlettail - GameFAQs
Memory (Undertale) Sheet music for Celesta (Solo) | Musescore.com
Daily Toby Fox Trivia on X: "Buried in Undertale's code are two unused interfaces for the Waterfall piano puzzle. Screenshots from YouTube channel ASmolBoy. https://t.co/BITRta7kZN" / X
UNDERTALE Walkthrough Wiki - GameVillage
Play Your Best Friend (Undertale) Music Sheet | Play on Virtual Piano
Undertale Piano Puzzle Game Online
Undertale Piano Puzzle - Play Undertale Piano Puzzle on Storyteller Game
Comprehensive Undertale Piano Puzzle Guide - Indie Game Culture
Artifact Room | Undertale Wiki | Fandom
How to play the piano in Undertale - Quora
This is HOW You Play Undertale (Unedited Piano Puzzle Solution) : r/TwoBestFriendsPlay
Undertale - Waterfall explored: Piano puzzle solution and Temmie Village location | Eurogamer.net
Undertale - How to Complete the Piano Puzzle | Undertale, Pixel art, Game design
Undertale Piano Puzzle Solved - YouTube
Waterfall - Undertale Guide - IGN
