Skip to content
Now boarding
Honkai: Star Rail Wiki

“May this trailblaze carry you far.”

Explore →

Galactic Doppelbatter

Last updated 2026-01-18

Galactic Doppelbatter is an Achievement in the category The Memories We Share.

To obtain this achievement, the player must confront the "Shapeless" Doot-Doot disguised as the (Trailblazer) and prove that they are the real one.

Locations

Dialogue

Icon Dialogue Question Investigate
(Quick Read)
The Shackling Prison Convict Directory - Shapeless Doot-Doot
Inmate: Shapeless Doot-Doot

Summary of criminal involvement: Mimicry of various life forms, imitation of voices and appearances to confound and manipulate. Such cases include but are not limited to: Identity cloning, fraud, illicit espionage, and more.
Instructions for detention: During detention, minimize the inmate's contact and conversation with others. If a face-to-face discussion is required, there must be no less than two people attending the interview. When in conversation with the inmate, make sure to cover the inmate's eyes and obscure their vision to prevent any malicious intent. Any visitors are required to wear a mask and a code word is required for entry and exit to prevent the prisoner escaping in disguise.
Notes: True physical form is unknown. When in discussion, make sure to avoid mentioning topics such as Xenohydros or Red Clayforms to prevent their mood from becoming unstable or erratic.

An empty cell awaits you, much like an unoccupied kingdom awaits its ruler. It was once meant to confine the most notorious prisoner, yet it now stands vacant.
This analogy doesn't quite fit for prisoners, but it's like a visit to the zoo — you eagerly anticipate seeing the star attraction in the prime viewing area, only to find it hidden and asleep beneath a boulder, leaving you nothing to see.
Icon Dialogue Arrow How about observing for a little while longer?
As a matter of fact, you already realize what would happen if you continue looking at it...
???: (Trailblazer)?
As you turn around, you're met by a prison guard you've never encountered before, but she effortlessly calls you by your name. Perhaps that's the trouble with being a celebrity.
Patrolling Prison Guard: (Trailblazer), why are you here? Aren't you supposed to be at the Domain of Collations supervising... their work?
Icon Dialogue Arrow Domain of Collations... what is that place?
Patrolling Prison Guard: Weren't you there just now? I just came from the Domain of Collations...
Icon Dialogue Arrow I supervise... Ten-Lords Commission's work?
Patrolling Prison Guard: Weren't you just rattling on about the lack of rigorous control over escape prevention in The Shackling Prison?
Icon Dialogue Arrow Have we... met before?
Patrolling Prison Guard: You must be kidding. We just met not long ago...
Patrolling Prison Guard: Hold on! Now I get it. I just received a notification from the monitoring system that there was a security breach from the Shapeless Doot-Doot's cell. It seems that Doot-Doot has taken advantage of the chaos to escape.
Patrolling Prison Guard: In other words, either you or the one upstairs is the Shapeless Doot-Doot.
Icon Dialogue Arrow Then what are you waiting for? Go and catch it!
Icon Dialogue Arrow You don't think... I'm Doot-Doot, do you?
The prison guard's gaze shifts abruptly, assessing you with keen scrutiny.
She's probably also having a hard time figuring out the appropriate tone with you — what if she's respectful to you, only to find that you're Doot-Doot in disguise? Conversely, what if she adopts a stern demeanor, only to discover you're the genuine (Trailblazer)?
Patrolling Prison Guard: ...I can't tell. You have to come with me.
Icon Dialogue Arrow That is your problem...
Patrolling Prison Guard: If you refuse to come, I'll assume you're Doot-Doot. However, if you choose to join me upstairs, you'll have a chance to prove your identity — consider this not an invitation, but a demand.
Icon Dialogue Arrow Let's go. I'm curious to find out who's upstairs!
Patrolling Prison Guard: Yeah, let's go.
(Teleport to the watchtower)
Icon Dialogue Exit Let's just give up. It's about time to go.

(Approach the fake Trailblazer)
???: You don't give me a grand welcome, fine, but why do I still have to go through so many hoops just to leave this wretched place?
Icon Dialogue Question Listen
???: Get your supervisors here. Xueyi? Hanya? Huohuo? If they are unavailable, request the presence of General Jing Yuan from Xianzhou's Seat of Divine Foresight.
Vexed Prison Guard: ...Let me get Madam Hanya.
???: Wait a minute! As prison guards, you shouldn't trouble the judges with such trivial matters. Like I say, your work standard isn't up to par.
Patrolling Prison Guard: I've escorted the other (Trailblazer) here. Additionally, with the escape of Shapeless Doot-Doot from its cell, there's a chance that either of these two individuals could be Doot-Doot.
Hunting: No need to worry. Leave this matter to me. I have ample experience. Both of you will just claim to be (Trailblazer), so asking for your name is meaningless. Let's just call the one who has been here for all this time Suspect A.
Hunting: And you who have just arrived, Suspect B.
Suspect A: (He/She) is a fake. I'm the real one.
Hunting: ...Save your breath. "You're real," "You're a fake"... These are all pointless. Go and get me a Diting.
Patrolling Prison Guard: Yes, Judge Hunting.
The patrolling prison guard received the order and leaves. You notice Suspect A is somewhat jittery...
Hunting: Before Diting's arrival, you two are free to pose any questions to each other. I'm not acquainted with (Trailblazer), so I won't intervene. Nevertheless, I won't disclose my ultimate decision.
Hunting: Now, I'll give you some time to think, but no verbal communication.

(Interacting with Suspect A, optional)
Icon Dialogue Question Suspect A
You and the other suspect have the same hair color, outfit, pupil color, and height. Suspect A is your most familiar stranger.
Since that individual has listed the names of several absent judges, it must have gotten some vague memories from you, but it's unknown whether these memories are authentic or fabricated.
It's best to take some time to observe Suspect A. You may be able to find some clues.
Reached any conclusions?
Icon Dialogue Arrow What a magnificent face.
You're right. Many people like you.
Icon Dialogue Arrow (He/She) is the genuine (Trailblazer).
Please be more confident in yourself.
Icon Dialogue Arrow Can I take a photo with myself?
Of course. After the talk, you may make use of the Camera function.
(Talk to Hunting)
Icon Dialogue Question Hunting
Hunting: Are you ready?
Icon Dialogue Arrow Hurry. Let me ask my questions.
Hunting: The Diting is already on their way. Let us begin.

Hunting: Very well. You're now both granted the opportunity to pose a question to each other, and the respondent must provide an answer. Given that one of you is already lying, I will not expect honest responses to all the questions.
Hunting: Therefore, I'll base my decisions solely on the questions presented and how the answers are given. Naturally, I won't reveal my decisions immediately. Let's begin with you, Suspect A. Pose your question.
Suspect A: I am a crew member of the Astral Express, and only the Crew holds the answer to this question. The Ten-Lords Commission is welcome to verify the answer with Mr. Yang, Himeko, or Pom-Pom after (he/she) has provided an answer.
Icon Dialogue Arrow All your memories come from me.
Suspect A: Are you trying to say you know everything that I know? Don't be too confident!
Icon Dialogue Arrow ...There are unknown secrets between us too.
Suspect A: Your Honor, (he/she) is guilty.
Suspect A: My question is: You can find many lamps in the Parlor Car of the Astral Express. How many of them are floor lamps?
Icon Dialogue Arrow 3.
Suspect A: Incorrect! It's 4! Your Honor, (he/she) is a fake.
Hunting: As I've mentioned, I will not judge based on the answers.
Icon Dialogue Arrow 4.
Suspect A: That must be a lucky guess, huh?
Icon Dialogue Arrow 5.
Suspect A: Incorrect! It's 4! Your Honor, (he/she) is a fake.
Hunting: As I've mentioned, I will not judge based on the answers.
Icon Dialogue Arrow 6.
Suspect A: Incorrect! It's 4! Your Honor, (he/she) is a fake.
Hunting: As I've mentioned, I will not judge based on the answers.
Icon Dialogue Arrow Skip.
Suspect A: You can't skip the question! You're guilty, aren't you!? Your Honor, (he/she) is a fake.

Icon Dialogue Arrow I don't think any normal being will remember such details...
Suspect A: Shut up, Suspect B! Who are you calling abnormal?
Icon Dialogue Arrow Any cheat you can do, I can do better. You're going to lose.
Suspect A: Shut up, Suspect B! How dare you call yourself the Nameless on Astral Express when all you can do is cheat?
Hunting: Now's your turn to ask a question, Suspect B.
Icon Dialogue Arrow How many small round tables are there in the Parlor Car?
Suspect A: 2 small round tables. The real crew member of the Astral Express will certainly know this.
Icon Dialogue Arrow Do you know Dr. Primitive loves to eat bananas?
Suspect A: Of course, I know...? What kind of question is that?
Icon Dialogue Arrow Do you know I hit my hard guarantee the last time I gacha'ed?
Suspect A: Even if I can answer that question, what can it prove?
Icon Dialogue Arrow Among Xueyi, Hanya, and Huohuo, who likes me the most?
Suspect A: I only know all three of them like me a lot.
Icon Dialogue Arrow What is the number at the 100th decimal place for π?
Suspect A: It's 9... Wait, did I miss something? Why the surprised look?
Hunting: All right. I already know the answer.
Hunting: Wraith Warden! Arrest Suspect A immediately!
Suspect A: WHAT!?
Two Wraith Wardens leap out from the shadows of the Domain of Collations and apprehend Shapeless Doot-Doot in an instant.
Hunting: Sorry that you had to go through all these hassles, (Trailblazer).
Icon Dialogue Arrow Critical hit! How did you know?
Icon Dialogue Arrow Hahaha, actually, I was the fake.
Hunting: It's not too late to order your arrest.
Hunting: Rather than listening to your conversation, I'm more interested in observing your actions and expressions when facing unexpected questions. It's evident that Suspect A is more anxious than you.
Suspect A: I am not convinced! Why hasn't the Diting spoken? I want to hear what the Diting has to say!
Hanya, who is passing by, walks over upon hearing the ruckus that the suspect is making.
Hanya: I thought I would be required to handle this matter. Seems unnecessary now... Good job, Hunting.
Hanya: In fact, there's an easier method to see which of you is real — wouldn't it be simpler for the two of you to fight? The one who survives will be eligible to be (Trailblazer).
Icon Dialogue Arrow So I still need to fight after all it's said and done.
Hanya: Not necessary. See how panicked that one is. It does not have the capability to battle.
Icon Dialogue Arrow I don't want to damage that charming face.
Hanya: ...
Hanya: Don't worry. See how panicked that one is? It does not have the capability to battle with you.
Hanya: Shapeless Doot-Doot, will you admit guilt? Or do we have to get the Diting to verify your identity?
Doot-Doot: I'm guilty...
Hanya: Hunting, take it away.
Hunting: Yes.
Hanya: (Trailblazer), sorry to cause you so much inconvenience. Please accept these gifts as our apology. Now that this case has come to an end, I'll take my leave first.
(Obtain Adventure Log Adventure Log ×3, Condensed Aether Condensed Aether ×2, and Credit Credit ×5000)
(Unlock Achievement Galactic Doppelbatter)
Icon Dialogue Exit Let me think about it.

(Talk to the Patrolling Prison Guard, optional)
Patrolling Prison Guard: Now that escaped prisoner, Shapeless Doot-Doot, has been sent behind bars, it won't be able to escape again anytime soon. (Trailblazer), please forgive me for being rude to you before.
Icon Dialogue Arrow It's fine. It's good that you are doing your job.
Patrolling Prison Guard: Thank you for your understanding.
Icon Dialogue Arrow Keep your eyes peeled next time...
Patrolling Prison Guard: I will definitely take what happened today as an important lesson.
Patrolling Prison Guard: In fact, even before encountering (Trailblazer), Doot-Doot had been pretending to be you, fervently insisting that the biometrics recognition system for entering and exiting The Shackling Prison should be deactivated...
Patrolling Prison Guard: Now that I think about it, it seems Doot-Doot was scheming an escape from The Shackling Prison. Thankfully, your timely arrival helped foil its ploy. The thought of Doot-Doot escaping is alarming indeed. On behalf of the Ten-Lords Commission, I extend my gratitude to you.
Patrolling Prison Guard: If you wish to know more about Shapeless Doot-Doot, you're welcome to visit its cell. Rest assured, we've taken measures to ensure it won't escape again.

Trivia

  • This achievement is a reference to "True and False Monkey King", a chapter of the Chinese novel Journey to the West in which the Six-Eared Macaque impersonates the novel's protagonist, Sun Wukong.
    • The Chinese name of the achievement translates literally to "True and False Trailblaze King."
    • The Diting summoned by Hunting during the achievement references the 谛听 Dìtīng summoned to identify the false Sun Wukong in Journey to the West.

Other Languages

LanguageOfficial Name
EnglishGalactic Doppelbatter
Chinese
(Simplified)
真假开拓王
Chinese
(Traditional)
真假開拓王
Japanese真偽開拓王
Korean진짜 개척왕은 누구?
SpanishDoppler trazacaminos
FrenchDoppelbatter galactique
RussianЛжепервопроходец
Thaiศึกอภินิหาร ราชันผู้บุกเบิกที่แท้จริง
VietnameseVua Khai Phá Thật Giả
GermanTrailblazer: Wahr oder falsch
IndonesianRaja Perintisan Asli dan Palsu
Portuguese(Grande Impostor de Beisebol da Galáxia/Grande Impostora de Beisebol da Galáxia)

Change History

Navigation