List of Bosses
★ 8 SHiFT Codes as of September 2025
☆ Black Market Location
★ Elemental Weakness Chart
☆ Legendary Weapons
★ Builds: Vex | Amon | Rafa | Harlowe
☆ How to Respec Skill Tree
This is a list of bosses you can fight in Borderlands 4. Read on to see a list and map of all bosses, including info on their legendary drops and locations.
List of Contents
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All Boss Locations in Borderlands 4
| UI Element | Details |
|---|---|
 Fullscreen Toggle | Toggles fullscreen mode on or off. |
 Zoom Buttons | Increases or decreases the zoom level. |
 | The arrow button at the top-left of the map shows or hides the sidebar. The buttons below it toggle the visibility of marked pins or display pin names on the map. |
 | The dropdown at the top of the sidebar lets you choose which map to view when multiple maps are available. |
 | Searches and displays map pins that match the entered text. |
 Show or Hide All Pins | The Show All and Hide All buttons toggle the visibility of all map pins. |
 | Selecting a Pin Type shows or hides all pins of that type. Clicking the arrow next to a Pin Type Category hides the category from the sidebar but not the pins on the map. |
 | Clicking a map pin opens a window with more details about that point of interest. |
 Pin Details Window | In the Pin Details window, you can mark the pin as collected, leave a comment, copy its link for sharing, or click the pin title URL to view a related guide. |
List of Bosses in Borderlands 4
| Boss | Location and Drops |
|---|---|
 Splashzone
|
Main Mission: Recruitment Drive
Location: Riptide Grotto Region: Fadefields Legendary Drops: |
 Horace
|
Main Mission: Down and Outbound
Location: Horace's Oversight Region: Fadefields Legendary Drops: |
 The Oppressor
|
Main Mission: A Lot to Process
Location: The Killing Floors Region: Fadefields Legendary Drops: |
 Bio-Bulkhead
|
Main Mission: One Fell Swoop
Location: Synthetic Nave Region: Fadefields Legendary Drops: |
 Idolator Sol
|
Main Mission: Rush the Gate
Location: Fortress Indomita Region: Fadefields Legendary Drops:
・Ultimate Bio-Robot
・Perpetual Dancer
・Excitable Technomancer
・Melting Furnace
|
 Driller Hole
|
Main Mission: Unpaid Tab
Location: Queen's Cradle Region: Carcadia Burn Legendary Drops: |
 Callis, the Ripper Queen
|
Main Mission: Her Flaming Vision
Location: Moon-Called Throne Region: Carcadia Burn Legendary Drops:
・Queen's Rest
・Agile Esgrimidor
 Professional Skeptic
・Prismatic Illusionist
・Resounding Viking
|
 Bramblesong
|
Location: Bittervein Abandoned Auger Mine Region: Terminus Range Legendary Drops: |
 Sidney Pointylegs
|
Location: The Prospects Ripper Drill Site Region: Fadefields Legendary Drops: |
 Genone
|
Side Mission: Fault Hunting
Location: The Yawning Yard Region: Carcadia Burn Legendary Drops: |
 Callous Harbringer of Annihilating Death
|
Location: Craven's Nook Order Bunker Region: Terminus Range Legendary Drops: |
 Sludgemaw
|
Side Mission: All Charged Up
Location: Watershed Gate Region: Fadefields Legendary Drops: |
 Primordial Guardian Inceptus
|
Side Mission: Primordial Vault: Fadefields
Location: Arch of Inceptus Region: Fadefields Legendary Drops:
・Firey Elementalist
・Rewarding Filantropo
 Electric Avatar
|
| Timekeeper |
Location: Upper Dominion Region: Dominion Drops: TBD |
| Vile Lictor |
Location: Umbral Foundry Region: Terminus Range Drops: TBD |
| Vile Protoype |
Location: Lictor's Black Site Region: Terminus Range Drops: TBD |
| Skyspanner Kratch |
Region: Terminus Range
Drops: TBD |
| Moon-Maddened Callis |
Location: Elpis Orbital Shatterfield Region: Carcadia Burn Drops: TBD |
Lead Balloon
Jelly
Aegon's Dream
Whiskey Foxtrot
Sho Kunai
Asher's Rise
Onslaught
Blood Analyzer
Streamer
Waterfall
Fuse
Pandoran Memento
Convergence
Disco
Noisy Cricket
Disc Jockey
Oscar Mike
Hot Slugger
Kaleidosplode
Atling Gun
OnionBorderlands 4 Related Guides
Borderlands 4 Walkthrough Wiki
Borderlands 4 Wiki
| Borderlands 4 Wiki Contents | |
|---|---|
 Main Missions |
 Side Missions |
 Builds |
 Tips and Tricks |
 Bosses |
 Customizations |
 Weapons |
 Shields and Repkits
|
 Ordnances |
 Skills |
 Specializations |
 Safehouses |
 Auger Mines |
 Vehicles |
 Characters |
 News and Game Info |
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