Introduction to the Hidden Boss in Chapter 4 of Deltarune How to defeat the hidden boss in Chapter 4 of Deltarune

Today, I will introduce the hidden boss of Chapter 4 in Deltarune. In the game world of Deltarune Chapter 4, the challenge of the hidden BOSS is like a mysterious level hidden in the thick fog, bringing an extra depth of experience to players. Unlocking this hidden challenge is not easy; it requires players to deeply engage in the main storyline. After defeating the doll BOSS and obtaining the wall-climbing ability, subsequent exploration can be unlocked. Collect the password and go to the library area, interact with the piano on the top floor, play the melody according to the password sequence, and then the door to the hidden BOSS battle will open. Let's take a look together.

The prerequisites for unlocking the hidden boss are closely related to the main storyline. Players need to advance the main story to defeat the doll boss and obtain the wall-climbing ability before they can unlock the subsequent hidden content. The acquisition of this ability makes it possible to access previously unreachable areas such as the right side of the castle, becoming a key threshold for unlocking the hidden boss. Collecting password clues is the core part of the unlocking process, requiring players to carefully explore different areas of the castle. In the right area of the castle, players need to find climbable positions and move upwards, enter specific rooms, and rely on the sound wave feedback in the environment to find the mechanism. By carefully distinguishing the changes in the sound waves, determine the location of the mechanism and activate it to obtain the first segment of the password.

Continue exploring in this area, when you reach near the large water basin, a battle will be triggered. The enemies mainly attack by firing bullet patterns. Players need to observe the trajectory of the bullet patterns, move flexibly to avoid them, and after winning, they can get the second segment of the password. Go to the castle pool area, where there is a hidden door that needs to be opened by throwing money. After entering, you still need to use the sound wave guidance to explore, trigger the blue mechanism to get the third segment of the password. Throughout the process, keen perception of sound waves and patient exploration are the keys to obtaining the complete password. After collecting all three segments of the password, players need to go to the complex library area, use the wall-climbing skill to carefully climb to the top floor, and when interacting with the piano on the top floor, play the melody corresponding to the three segments of the password, and the hidden door will open.

The final boss battle mechanism is related to the tower climbing stage. The black and white monsters can be dispersed and absorbed to enhance oneself, while the red and black monsters must be firmly avoided. At the same time, the boss will fire black and white bullet patterns. Players need to pay attention to the bullet pattern trajectories while dealing with the small monsters, and avoid them through flexible movement. After the boss recovers and triggers the plot, Mr. Green Turtle joins the battle. The player needs to throw Kris into the center position of the Titan, triggering the subsequent plot to end the battle.

The introduction to the hidden boss of Deltarune Chapter 4 is now complete. With the guidance of this guide, players can more efficiently complete this challenge, leaving a memorable experience in their Deltarune adventure, and also accumulating valuable experience for exploring more hidden content in the game. Look forward to discovering more surprises in future game progress.