Black Powder Mine

The Black Powder Mine is the 3rd chamber of The Gungeon. As the name suggests, it is a mining facility where gunpowder and perhaps other compounds are extracted. This floor contains pits of acid, minecarts, and all types of barrels.

Some rooms have streams of acid on the ground, indicated by their yellowish glow. These hazards act like poison goop, except all enemies are immune to them; only the player can be harmed if they stay in it for too long. However, the acid will stop acting like poison if water is sprayed on it, such as from the Mega Douser.

The Black Powder Mine is decorated with oil-filled lamps on the sides of the walls. These lamps leak small puddles of oil if destroyed, which can be ignited.

Bosses

Cannonbalrog	Treadnaught	Mine Flayer

Special Bosses

Blockner	Door Lord

Enemies

Icon	Name	Description
	Bullet Kin	Slowly walks towards the player, firing bullets.
	Bandana Bullet Kin	Slowly walks towards the player, rapidly firing bullets.
	Veteran Bullet Kin	Slowly walks towards the player, firing bullets and predicting the player's movements.
	Tanker	Slowly walks towards the player, rapidly firing bullets.
	Shroomer	Slowly walks towards the player, firing two bullets in a V shape.
	Minelet	Slowly walks towards the player, firing bullets. Occasionally hides under its hard hat, temporarily deflecting bullets, then pops out and releases bullets in all directions.
	Red Shotgun Kin	Slowly walks towards the player, occasionally firing a tight spread of 5 bullets. Has a chance to fire 6 bullets in all directions upon death.
	Blue Shotgun Kin	Slowly walks towards the player, occasionally firing a wide spread of 5 bullets quickly followed by a wide spread of 4 bullets. Has a chance to fire 6 bullets in all directions upon death.
	Veteran Shotgun Kin	Slowly walks towards the player, occasionally firing a V-shaped spread of 5 bullets and predicting the player's movements. Fires many bullets in all directions upon death.
	Keybullet Kin	Runs away from the player and disappears if not killed. Turns into a key upon death.
	Sniper Shell	Periodically aims at the player with a red laser, then fires a single high-speed bullet.
	Professional	Periodically aims at the player with a green laser, then fires a single high-speed bullet that explodes into bullets in all directions upon impact.
	Hollowpoint	Floats towards the player, rapidly firing bullets. Periodically disappears and reappears elsewhere in the room.
	Bombshee	Follows other enemies around, frequently emitting a short-ranged shriek that destroys the player's bullets. If all the other enemies die, the Bombshee will launch itself at the player, exploding on contact.
	Rubber Kin	Attempts to launch itself towards the player, knocking the player back upon contact. Cannot deal direct damage to players.
	Tazie	Launches itself towards the player, dealing damage upon contact.
	King Bullat	Periodically fires bouncing bullets in all directions. Spawns several Bullats and Shotgats upon death.
	Pinhead	Walks towards the player and explodes upon death. IF the player gets too close, it will leap towards the player and explode.
	Nitra	Walks towards the player and creates a line of explosions upon death. If the player gets too close, it will leap towards the player and detonate itself.
	Blobulon	Moves towards the player and attempts to deal contact damage. Splits into two Blobuloids upon death.
	Blobuloid	Moves towards the player and attempts to deal contact damage. Splits into two Blobulins upon death.
	Blobulin	Quickly moves towards the player and attempts to deal contact damage.
	Poisbulon	Moves towards the player, leaving a trail of poison creep. Splits into two Poisbuloids upon death.
	Poisbuloid	Moves towards the player, leaving a trail of poison creep. Splits into two Poisbulins upon death.
	Poisbulin	Quickly moves towards the player, leaving a trail of poison creep.
	Skusket	Has two lines of bullets orbiting it. Slowly floats towards the player, firing skulls that home in on the player and split into 6 bullets upon being destroyed.
	Gigi	Flies towards the player, periodically spitting an egg that releases a swarm of bullets towards the player.
	Muzzle Wisp	Dashes three times in random directions, then releases a ring of flaming bullets. Leaves behind a patch of fire upon death. Sets the player on fire upon contact.
	Cubulon	Frequently fires bullets in all directions in a diamond shape.
	Chance Kin	Runs away from the player and disappears if not killed. Turns into a !-cube which drops a random pickup upon death.
	Apprentice Gunjurer	Fires bullets in a variety of rotating shapes, such as a square, circle, or X. Occasionally disappears and reappears elsewhere in the room.
	High Gunjurer	Fires large rings of bullets at the player. Occasionally disappears and reappears elsewhere in the room.
	Gunsinger	Buffs an enemy in the room, increasing their health and speed. They will cancel their spell and run away if the player is too close or they take too much damage.
	Aged Gunsinger	Buffs all enemies in the room, increasing their health and speed. They will cancel their spell and run away if the player is too close or they take too much damage.
	Jammomancer	Jams an enemy in the room, increasing their health, speed, and damage.
	Jamerlengo	Jams all enemies in the room, increasing their health, speed, and damage.
	Mimic	Rapidly fires bullets towards the player. Drops items and/or pickups upon death.
	Bullat	Launches itself at the player, dying in the process.
	Shotgat	Launches two projectiles in a V shape at the player, dying in the process.
	Grenat	Launches an exploding projectile at the player, dying in the process.
	Spirat	Launches itself at the player, dying in the process. Predicts the player's movements, and can reposition itself several times before hitting walls.
	Coaler	Occasionally fires bullets at the player. Catches on fire upon taking damage, running around erratically and sending flaming bullets out in random directions.
	Gat	Bounces around the room and deflects bullets. Occasionally opens up to fire three spreads of four bullets towards the player.
	Det	Periodically fires four lasers in a + or × formation. Explodes upon death.
	Gunzookie	Periodically spits up bubbles that, upon popping, fire a bullet that predicts the player's movements.
	Gunzockie	Periodically spits up four bubbles that, upon popping, fire a bullet that predicts the player's movements.
	Bullet Shark	Charges towards the player, releasing bullets to the sides of itself.
	Chancebulon	Fires random attacks from other Blobulon enemies, along with groups of bullets that look like dice. Has a chance to fire multiple attacks at the same time, and has a chance to die instead of attacking.
	Misfire Beast	Camouflages itself and creates projections that attack the player with bullet whips.
	Gun Nut	Periodically strikes the ground with its sword, releasing a wide 90 degree arc of bullets towards the player. Can only aim in the eight compass directions.
	Fungun	Periodically releases clouds of bullets. Leaves a small pool of poison creep upon death.
	Spogre	Periodically releases large clouds of bullets. Releases a smaller cloud of bullets upon death.
	Gripmaster	Hovers over the player and attempts to grab them. If the player is successfully grabbed, it will shoot the player to a previously cleared room, which will be reset and have all enemies respawned. Automatically dies if all other enemies in the room are killed.
	Phaser Spider	Fires large web-shaped sprays of bullets at the player that leave slowing cobwebs on the floor. Frequently burrows into the ground and reappears elsewhere in the room.
	Killithid	Summons portals around the room that fire bullets towards the player. Occasionally splits into three copies of itself, two of which are illusions.
	Tarnisher	Sinks into the floor and chases the player. If it successfully catches the player, it will deal damage, partially drain the current gun's ammo, and reduce the magazine size of all of the player's guns until they pick up ammo.
	Shambling Round	Has three stages that it progresses through as it takes damage. In its first stage, it fires rings of bullets in all directions. In its second stage, it rapidly alternates between firing bullets out of its left and right sides. In its third stage, it sprays numerous bullets in all directions. Upon death, it leaves behind a cap that explodes after a short delay.
	Shelleton	Slowly walks towards the player, frequently firing two wide bursts of bullets at the player. Occasionally fires a laser at the player. Collapses upon death, and will revive if not destroyed after a short period of time.

Notes

• Before being given to the Blacksmith in the Forge, there is always a room in the containing a series of flying minecarts in the Black Powder Mine with several explosive barrels surrounding a pedestal of Arcane Gunpowder on the other side. These minecarts must be dodge rolled in and out of in order to reach the Arcane Gunpowder. (Or simply flown over with items that allow flight)
  • This room is always a dead end.

Gallery

• 

  A stream of acid.

See also

• Chambers

The Gungeon
The Breach		Keep of the Lead Lord		Gungeon Proper		Black Powder Mine		Hollow		Forge
Secret Chambers
Oubliette		Abbey of the True Gun			Resourceful Rat's Lair			R&G Dept.		Bullet Hell