HIGHLIGHTS
- You can unlock a secret boss and Susie’s magic axe in Deltarune Chapter 4 by solving the golden piano puzzle using three hidden music notes.
- The music notes are found in tricky spots like behind the donation waterfall, near Gerson Boom, and in the room with the “Jockington grows the beard” message.
- After collecting all the notes, play the correct tune on the golden piano before moving too far in the game, or you might miss the chance.
In Deltarune Chapter 4, there is a secret boss that you can unlock by solving a piano puzzle.
This boss is not like the one in Chapter 3, which needed S-ranks or arcade scores. Instead, you need to find music sheets and play a song on a golden piano.
You must find all the clues and solve the puzzle before going too far in the story.
Where To Find The Music Sheets
To solve the puzzle, you first need to find three hidden music sheets. These are in different places in the game.
One is behind the waterfall, where you can give donations. Another is near the place where you first meet Gerson Boom.
The third one is in the area where the game mentions “Jockington grows the beard.” In that room, go to the top-left part to find the clue.
Make sure to collect all three sheets before going too far in the story. If you miss them or move ahead too much, some paths may be blocked, and you might not be able to return.
How To Get To The Golden Piano In Deltarune Chapter 4
After getting all the music sheets, go back to the golden piano room. From the study room, go through the top-left door near the boss’s room.
Climb the bookshelf on the right, then climb another shelf above it to reach the piano.
You can also get there from the fireplace room. Go upstairs, then go through the door on the left. In the next room, climb the bookshelf on the right to reach the piano area.
Sometimes, enemies or changes in the map can block your way when you try to go back.
If this happens, try reloading a past save file. This will let you return to the piano room while it’s still open.
How To Solve The Chapter 4 Piano Puzzle In Deltarune Chapter 4
When you reach the golden piano, play this song: Up, Dot, Up, Left, Down, Dot, Right, Dot, Right, Down, Left, Dot.
This tune comes from the clues you found with the music sheets. Playing it the right way will unlock Susie’s magic axe and the secret boss.
It may take time to find the clues and get back to the piano, but the reward is worth it, especially for players who want to complete everything in the game.
