My 11-year old brother is playing for the first time. He texted me the piano code so he didn't have to memorize it, and then this happened. : Undertale
Undertale Part #14 - Waterfall
Hotland Puzzles | Undertale Wiki | Fandom
Puzzles Guide - Undertale Wiki Guide - IGN
Undertale - Hotlands explored: Vent puzzle solutions and how to beat Muffet • Eurogamer.net
Undertale - Waterfall Bridge Seed puzzle solution | Over the bridge, Undertale, Waterfall