Deltarune Chapter 5 throws one of its most memorable choices at you inside Flower Castle: destroy the Hyper Punishment Gun before it fires, or stand back and watch what happens. The decision hits fast, and the consequences are immediate. Here is exactly what each path leads to and what you should do.

Who Is Yellow in Deltarune Chapter 5?
Yellow is one of the unique NPCs you encounter at Flower Castle during Chapter 5. He is obsessed with justice and holds himself to a rigid standard of law and order. After Kris, Susie, and Ralsei clear his Bullet Hell fight, Yellow introduces himself and convinces himself that he is responsible for a crime. He tries multiple methods of self-punishment, including burying himself and tying himself to train tracks, before settling on the Hyper Punishment Gun as the ultimate sentence.
The gun is mounted to the ceiling, and Yellow triggers its charge sequence himself. You have 120 seconds before it fires.
What Happens If You Let the Hyper Punishment Gun Fire?
If you do nothing while the gun charges, it fires after the full two minutes. The screen fills with a dark shadow at the center and a blinding white light around the edges. When the effect clears, you will notice that Kris, Susie, and Ralsei all have zero HP. The gun missed Yellow entirely. He reappears, says “Dang, it missed me!” and the screen cuts to black. You then hit the Game Over screen and reload from your nearest save point.

There is no achievement tied to this outcome and no story benefit. You simply lose your current progress in the encounter and restart. The game treats it as a full wipe.
What Happens If You Save Yellow?
Saving Yellow means attacking the Hyper Punishment Gun repeatedly until you destroy it before the 120-second timer expires. Doing this keeps every party member alive and moves the story forward without interruption.
Destroying the gun also has story weight beyond just survival. Yellow later appears as a boss opponent alongside Blue, and your actions in this moment carry into that fight. The chapter’s pacing flows much better when you take this route, and you avoid the frustration of an unnecessary reload mid-session.
Should You Save Yellow or Let the Gun Fire?
You should save Yellow by destroying the Hyper Punishment Gun. The reason is straightforward: letting it fire kills your entire party and sends you back to your last save. There is no hidden reward, no secret ending, and no additional content locked behind the Game Over path. It is purely a novelty moment that Toby Fox built in for players who want to test the boundaries of the encounter.
If you are playing through Chapter 5 for story completion, a clean run, or a speedrun, destroying the gun is the correct call every time. The only reason to let it fire is curiosity or spectacle, and even then, you will immediately reload and do the encounter properly anyway.
How to Destroy the Hyper Punishment Gun
To stop the gun, deal enough damage to it during the 120-second window after Yellow activates the charge sequence. The steps leading up to it are:
- Defeat Yellow’s Bullet Hell encounter
- Enter through the yellow door
- Interact with the Hyper Punishment Gun prompt to begin attacking it
- Continue attacking the gun until it breaks before the timer reaches zero
The sequence is binary: you either destroy it in time or you do not. There is no partial outcome. If you run out of time, you get the Game Over cutscene and reload.
Does Yellow Die If You Do Nothing?
No. Despite the gun firing directly at him, Yellow survives without a scratch. The shot misses him entirely. Your party absorbs the full effect instead, dropping to zero HP. Yellow’s survival is played for dark comedy, which fits the tone of the moment and Toby Fox’s writing style throughout the Deltarune series. Play Now!
