Galactic Doppelbatter in Honkai Star Rail: how to expose Dudu the Formless

In Honkai: Star Rail The Galactic Doppelbatter is secret achievement and part hidden quest at Luofu Xianzhou. To pass it, you will need to expose Duda the Formless who has turned into you, proving that you are the Trailblazer. To do this, you will have to answer a series of questions to the judges. In this guide we will tell you how to do it.

How to unlock the Galactic Doppelbatter achievement in Honkai: Star Rail

Where is the scroll "Prisoner: Dudu the Formless"

First, complete the quest chain "Duel under the Azure Sky I". Next, travel to the Ice Prison I anchor located on Floor -1 in the House of Shackles. Turn around and go north, going up the steps. Approach the blue barrier of the prison cell and pick up the scroll illuminated by a spark from the floor.

As a result, you will receive the List of Prisoners of the House of Shackles: Dudu the Formless. It tells about a certain werewolf who imitated various creatures and committed various crimes such as espionage and fraud. Next, select an option “Maybe we should look again?” to continue this secret quest.

Talk to the jailers and Suspect 1

After selecting the above phrase, you will be approached by a Patrol Jailer who will be surprised to see you here. She will then assume that Dudu has turned into you. You can choose any answers, since you will still be transferred to the Scriptorium.

Walk forward to your double and listen to the conversation between him and the Puzzled Jailer. Then Hongting will appear and decide which of us is the criminal. Next, enter into a dialogue with Suspect 1. You can choose any answers, since this will still not affect the course of further interrogation.

Correct answer to Suspect 1's question

Now talk to Hongting and tell him that you are ready for interrogation. You will need to ask each other several questions, the correct answers to which only a true Trailblazer knows. The judge will be watching you carefully.

Suspect 1 will ask you: “How many floor lamps are there in the general carriage of the Starry Express?” . The correct answer looks like this:

• Four.

However, even if we give the correct answer, the changeling will say that we just guessed right, continuing to insist that he is the real hero. So even if you make a mistake, it will not affect the ending of the quest.

How to expose Duda the Formless

Next, you will need to ask the Doppler a question. Again, you can choose any option, since it will not affect the ending, because Suspect 1 will still not give a straight answer, trying to get out of the situation:

• “How many are in the general carriage...” – the werewolf will answer that there are “2”.
• “You know that Jazz Primitive...” - he will say that he knows, but will be surprised by our question.
• “You know what last time...” - he will ask what exactly his answer will prove in this case.
• “Who likes me the most...” - the werewolf will answer that they all definitely like him.
• “What number is worth...” - he will say “9”, and then he will be surprised at our reaction.

After interrogation, Hunting will immediately order the arrest of Suspect 1. Then Hanya will appear, who will note that it is enough to have a fight between us to determine who is real. However, Dudu immediately saves and admits his guilt. After finishing a conversation with a friend you will unlock a trophy "Galactic Doppelbatter", and also receive 5 thousand credits, 2 condensed ether and 2 adventure logs.

Let's add that you can return to the place where you previously found the scroll and find Dudu the Formless in the cell. You will be able to ask the Doppler various questions. Note that in the Russian localization the name of this character is most likely a reference to the doppler Duda (Teliko Lunngrevink Letort) from The Witcher.