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Bosses are strong enemies found at the end of every floor in The Gungeon. Defeating a boss allows the player to advance to the next main floor.

Upon being killed, bosses drop a weapon or item of random quality, several Hegemony Credits, and one to three pickups such as hearts, ammo, or keys. Bosses will always drop a gun if the player has not yet picked up a gun on the current floor. If a boss from one of the five main floors is defeated without getting hit, they will drop a Master Round as well. Clearing a boss without getting hit will also cause it to drop doubled Hegemony Credits.

Keep of the Lead Lord[]

Bullet King.png Gatling Gull.png Trigger Twins.png
Bullet King Gatling Gull Trigger Twins

Gungeon Proper[]

Ammoconda.png Beholster.png The Gorgun.png
Ammoconda Beholster Gorgun

Black Powder Mine[]

Cannonbalrog.png Mine Flayer.png Treadnaught.png
Cannonbalrog Mine Flayer Treadnaught

Hollow[]

High Priest.png Kill Pillars.png Wallmonger.png
High Priest Kill Pillars Wallmonger

Forge[]

High Dragun.png
High Dragun


Secret Bosses[]

Black Powder Mine[]

Blockner.png
Blockner

Gungeon Proper, Black Powder Mine, and Hollow[]

Door Lord.png
Door Lord

Oubliette[]

Blobulord.png
Blobulord

Abbey of the True Gun[]

Old King.png
Old King

Resourceful Rat's Lair[]

Boss Resourceful Rat.png
Resourceful Rat

R&G Dept.[]

AgunimTitleCard.png
Agunim

Past Bosses[]

Black Stache.png Dr. Wolf's Monster.png
Black Stache Dr. Wolf's Monster
HS Absolution.png Interdimensional Horror.png
HS Absolution Interdimensional Horror
Agunim.png Cannon.png The Last Human.png
Agunim Cannon The Last Human

Bullet Hell[]

Lich.png
Lich

Notes[]

  • When the player enters the past, they will lose their items and guns, but will keep blanks and armor.
  • Every boss has a DPS (damage per second) cap as a way of stopping players from dealing high amounts of damage over a short time, so guns with high fire rate or high damage can't destroy bosses in seconds.
    • The DPS cap is applied across a 3-second window.
    • The most damage a single shot can deal is equal to triple the floor's DPS cap.
    • In Boss Rush, bosses have no damage per second cap.
    • In co-op, the DPS cap is increased by 70%.
    • The DPS cap is ignored by Glass Cannon, Makeshift Cannon, Yari Launcher, Boxing Glove's 3 star charged super punch, and High Kaliber's souls.
    • The DPS cap is ignored if a weapon deals 1000 or more damage with a single projectile.
    • The DPS cap varies per floor and was increased in the A Farewell to Arms Update:
Floor A Farewell to Arms Classic
Keep of the Lead Lord/Oubliette 30 25
Gungeon Proper/Abbey of the True Gun 42 35
Black Powder Mine 60 50
Hollow 70 58
Forge 78 65
Bullet Hell 80 70