Borderlands 4 Guide | How to One-Shot Every Boss

Here's how you can one-shot any boss in Borderlands 4 using the Songbird.

Game Guide by Joyramen on Sep 23, 2025

The Songbird is a pretty easy weapon to get your hands on in Borderlands 4. What makes this weapon able to hit any boss is its powerful, almost broken exploit, which makes it capable of tearing anything to shreds in seconds.

And the best part is you won't have to base your build around it or get anything extra; it's just the weapon itself.

Borderlands 4, How to One-Shot Every Boss, PC, Screenshot, Gameplay, NoobFeed

To get your hands on the weapon, you'll need to defeat a boss called the Rocken Roller, who can be found in the Trinker Crevass cave located around the top left-hand side of the map.

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You'll need to enter the cave, progress through until you reach the boss's arena, and then defeat the boss. The Songbird is one of its drops.

Using the Encore Machine, you can form the boss until you get your desired drop, which will take around 30 minutes.

To be able to use the exploit after getting your hands on the weapon, you'll need to follow a set of steps.

1. Shoot

2. Reload

3. Immediately switch guns.

4. Switch back to the Songbird.

Whenever you repeat this process, it'll stack the effect and increase the damage output, making the weapon the most powerful weapon in the game. You will want to practice the sequence to get a feel for it.

Borderlands 4, How to One-Shot Every Boss, PC, Screenshot, Gameplay, NoobFeed

This is a glitch that works without requiring a specific build, but there are certain ways to work around it if you really want to.

Using gun damage relics, shields, or skills will even increase its effect, and also using the crit knife or using the ultimate ability can also exponentially increase its damage. But even without the above, as mentioned before, the Songbird runs riot through bosses.

You'll be able to use this exploit, even if you're fast-travelling, changing zones, or changing difficulties. The only time the glitch resets is when you unequip the weapon.

This weapon has the benefit of not requiring any specific perks to unlock, making it accessible to you early on in the game as well.

Also, check our Borderlands 4 Review and other guides below: