← All reviews

Borderlands 4 Rainbow Vomit Review — Legendary Shotgun

Published: 8/15/2026 · Updated: 11/15/2026 · As of 2026-07

RarityLegendary
TypeShotgun
ManufacturerJakobs
ElementMulti (Corrosive/Cryo/Incendiary)
Drop sourceLeader Willem (The Excrucible)
Red Text
I think I'm gonna...

This review was machine-translated from the Japanese original. Numbers are checked against the original; if the wording reads oddly, the Japanese version is authoritative.

A Jakobs-made “Rainbow Barrage” shotgun that sprays droplets of three elements Corrosive, Cryo, and Incendiary each time you fire. The droplets arc and leave a rainbow attribute paddle on the surface they hit. Being Jakobs, it ricochets on critical hits.

🧩 Origin of the red text The name and flavor are based on the internet meme “Rainbow Puke (rainbow vomit)” (PC Gamer / MentalMars). “I think I’m gonna…” is the words said just before vomiting, representing the behavior of scattering multi-element droplets.

What kind of shotgun? (Beginner’s perspective)

Unique effect (Mechanics)

Color Spray (Color Spray): Corrosive / Cryo / Incendiary droplets are released, leaving a rainbow attribute paddle on the impacted surface.

Drop Farming

Drop SourceChanceNotes
Leader Willem (The Excrucible)9%Carcadia Burn region “Grindstone of the Worthy” inside The Excrucible for farming

Summary

Measured Stats (Aggregate of owned units)

This is an aggregation of measured values read from screenshots of owned units. The range is the observed minimum to maximum, with no conversion, rounding, or interpolation.

Level RangeDamageDPSFire RateObserved Units
Lv47890×65,4841.6/sec1

FAQ

What is the unique effect of Rainbow Vomit?

Color Spray: firing releases droplets of Corrosive, Cryo, and Incendiary, leaving a rainbow-colored elemental paddle on the impact surface.

Where can I obtain Rainbow Vomit?

It drops from Leader Willem (The Excrucible). Drop rate is 9%.