Unlock true secret boss in Deltarune Chapter 4. We promise no spoilers, but all Golden Piano melodies

Deltarune is known for its secrets. We have covered some of the most important in Chapter 3. The egg and the secret boss were quite well hidden. However, It does not mean that Chapter 4 lacks in that department. There are many hidden surprises. Of course, bosses and eggs are back. Some people believe that Mike is a secret opponent of this chapter. I have a different opinion. Let’s find the proper one by playing the Golde Piano well.

• Where to find the Golden Piano Melodies (Song) in Deltarune Chapter 4
• Melodies (songs) locations for the Golden Piano in Deltarune Chapter 4
• The proper song to play on the Golden Piano in Deltarune Chapter 4
• Secret Boss in Deltarune Chapter 4

Where to find the Golden Piano Melodies (Song) in Deltarune Chapter 4

1. The Golden Piano is in the Dark Sanctuary, above the Study (the room resembling the Library).
2. Once there, climb the left stairs and enter the left passage.
3. In the new room, use the book ladder on the right to climb (you will have to jump to go further up).
4. Repeat the above in the next location. This time the ladder will be in front of you.
5. Congratulations, you have found the Golden Piano.

Melodies (songs) locations for the Golden Piano in Deltarune Chapter 4

There is a plate next to the Golden Piano, which hints where all songs are hidden. To find all Melodies you need to backtrack.

1. The first song is in the dark room with lamps, one of the first places you have visited after entering the Dark Sanctuary. You need to climb the stones on the wall in the left corner of the location.
2. The second one is on the screen where you met the old shopkeeper for the first time. Next to the saving point. Right after the corridor with many windows.
3. The third one is behind the waterfall. Give 1000 to the pond and the path will be revealed.

The proper song to play on the Golden Piano in Deltarune Chapter 4

If you have no patience searching for the notes, you can always skip this part and enter the code directly:

1. Up
2. Middle
3. Up
4. Left
5. Down
6. Middle
7. Right
8. Middle
9. Right
10. Down
11. Left
12. Middle.

Secret Boss in Deltarune Chapter 4

After you play the proper song on the Golden Piano, a secret door will open. There is cutscene, so you will not miss it. Enter the room and… you will see what will happen next.

Deltarune

June 4, 2025

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• Overview

• boss (games)
• secrets
• indie games
• RPG games