While players familiar with Undertale may find the Piano puzzles in Deltarune a bit easier, many of these melodic challenges can still present a fair amount of difficulty. Players often need to explore various locations and backtrack after acquiring the climbing claws midway through Chapter 4, making the journey all the more intricate.
This guide aims to assist you with every Piano puzzle in Deltarune Chapter 4. You’re required to enter specific note sequences to unlock certain elements of gameplay, ensuring you won’t get stuck during your adventure.
Although I’ll outline detailed methods to solve these puzzles, there’s an option to skip the exploration by simply inputting the shortened sequences for each challenge.
First Piano Puzzle
The initial piano puzzle is quite straightforward. Press the buttons at the bottom while in darkness to reveal the solution. You’ll need to play Left, Down, Left, Down, Left, and Right to unlock the first gate, acting as an introductory tutorial for these music challenges.
Second Piano Puzzle
After your companions and the old man diverge, you can uncover the code by hitting buttons in the top and bottom left corners. Alternatively, just play Up, Up, Down, Down, Left, Left, Right, and Up on the piano to progress.
First Piano Block Puzzle
The blue piano in the leftmost room above the study engages in block puzzles that are solved with recognizable input patterns. For this puzzle, you must input Down, Left, Up, Right, Up, Left, Up, Left, and Down. Afterwards, navigate to the green piano on the left and subsequently input Up, Right, Up, Left, Up, and Right. After climbing the ladder, you’ll discover the AbsorbAx underneath the blue block.
Second Piano Block Puzzle
Returning to the previous setup, interact with the green piano again. This time, move it Down, Left, Up, Left, Up, and Right to access the door on the left, where you will receive a MysticBand.
Third Piano Block Puzzle
Return to the blue piano and input Up, Right, Down, Left, Up, Right, Up, Right, Up to access a new hallway that features additional doors for further progression rather than just optional items.
Swap Piano/Third Piano
This particular puzzle requires a bit more effort compared to previous ones. In the newly accessed hallway, navigate all the way to the left while avoiding enemies. There, you’ll find the first piece of the piano pattern.
To find the second piece, move to the right and interact with the pink and green piano. Begin by pressing Left on the pink block, switch to green, and hit Left, Up, Right, and Down. Afterwards, return to the pink piano to press Down, and then Right. This will allow you to reach the chest at the bottom, which contains a ReviveMint, a useful item for upcoming battles.
After you collect the item, return to the piano and move the pink block Up, followed by moving the green block Left, Up, and Right to create a walkable path. This completes the second part of the puzzle, leading you to the middle room where you can play Left, Down, Left, Right, Down, Down, Right, Right.
Grand Piano
Once you’ve obtained the climbing gear, head immediately to the Grand Piano located in the save point room in the library, which grants you access to the Secret Boss.
To decipher the code, return a little. From the Study, travel left, then down, and left at the bookcases. Continue heading left while evading shadow balls, and climb the footholds on the wall.
After reaching the top, descend and revisit the bookcases you initially passed.
Upon exiting the hallway, climb up the footholds leading to a dark room, where you must reach the upper right to interact with a character for the second part of your code. Head back to the Study to retrieve this final piece of the puzzle.
From the Study, navigate up, left, and behind the waterfall. Although it might seem challenging, traversing this dark area is straightforward. Once accomplished, you’ll have all pieces required and a delightful cutscene with the old man.
With everything in place, go back down, climb the books by the save point, and input Up, Neutral, Up, Left, Down, Neutral, Right, Neutral, Right, Down, Left, and Neutral to open the path to the secret boss.
Organ
At the pinnacle of the tower lies an organ with a larger array of notes, yet you’ll find this puzzle easier than expected. Simply play it once, move to the right, witness a cutscene with Susie and the old man, and then return to the organ.
Upon your return, Kris will play independently, allowing for autonomous play. Once completed, you can unlock a few Easter eggs by performing melodies like “Megalovania, ””Don’t Forget, ”and even “You’ve Got a Friend in Me”from Toy Story, offering a heartwarming surprise for players.
First Moving Piano Puzzle
In the Second Sanctuary, the gameplay mechanics shift dramatically. When you interact with the piano, it will soar instead of remaining stationary. To utilize this movement, hit Down, Left, Up, Left, Down, Left, Up, and Right.
This action opens up a ladder leading to a door that presents a unique enemy encounter. Post-battle, move the piano Down, Right, Up, Right, Down, and Right, then climb up to continue your journey.
Second Moving Piano Puzzle
In the Third Sanctuary, the piano serves more for mobility than puzzle-solving. However, there’s still a specific sequence to ensure your success amidst the heightened pressure. To reach your destination, execute Down, Left, Up, Right, Up, Left, Up, Left, Up, Right, Down, Left, Up, Right, Down, Left, Up, Left, Down, Right, Down, Left, Up, Right, Down, Left, Up, Left. This will lead you towards your goal seamlessly.
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