There are a lot of pianos inDeltaruneChapter 4, from small-time puzzle pianos to a grand golden organ required to access the chapter’s secret boss. While you have to track down the correct note combinations for each of these pianos to progress through the main storyofDeltaruneChapter 4, you can actually play some classicUndertalesongs to get some unique dialog from Ralsei and Susie.
You can only play these songs at a specific piano inDeltaruneChapter 4. It’s the big blue organ that opens the way to the Dark Fountain in the Old Man’s study. You can play any combination of notes on this instrument, and there’s even a button to shift the octave so you can create a wider range of melodies. There are quite a few easter egg songs you can play on this piano, and each one gets a great reaction from the party.
Deltarune Chapter 4 Piano Easter Egg Songs
In addition to the sheet music required to continue, these are all the secret songs you may play on the piano inDeltaruneChapter 4.
The table below uses compass notation, so the directions match the in-game arrows. Octave shifts are denoted with a $ before the note.
$SW-E-O-$SW-$NW-$NW-O-$SW-O-$SW-$NW-$NW-O
$W-O-SE-N-NW-SW-E-SE
$S-$W-$N-SE-NW-N-SW-SE-W-$NW-$N-SW-$NW-$N
$W-$N-$NW-$N-$W-$W-$NW-$N-SW-SE
$W-O-SW-E-O-E-O-E-SW-E-O-E
$W-$W-W-SE
Heart and Soul
$N-$N-$N-$N-$NW-$W-$NW-$N-E-SE-SE-SE-SE-E-O-E-SE-S
Once Upon a Time
$SW-SW-E-O-SW-$SW
Most of these just result in little dialogue quips from either Susie or Ralsei, but you really should try playing Megalovania at least once. There’s a special interaction for it. You won’t get any items or equipment for playing these songs, though, so feel free to move on once you’ve had your fill.
There are plenty more secrets to discover inDeltaruneChapter 4, and even though it may seem like you’re nearing the end of the chapter by the time you reach the big piano, there’s still a lot of stuff to do before the credits finally roll. Before moving onto the Dark Fountain, you should also take the time to fightChapter 4’s secret bossif you’re up for a challenge.
