Door Blockers

Upon entering a room with enemies, these door blockers slam down over the doors forcing you to remain in the room until you have killed all enemies in the room.

They each seem to have unique personality and attitude towards their job.

Somehow these door blockers appear in places outside the Gungeon (In the Gungeoneer's Pasts). It is unclear whether this is due to them existing universally, or the Gungeon extending it's influence to the Past.

### The Halls of Knowledge

The Door Blockers in the Halls of Knowledge are not unique, and are rather a mix of the Door Blockers from the Keep of the Lead Lord and the Gungeon Proper.

### Keep off the Lead Lord

The Door Blockers in the Keep of the Lead Lord are made of some yellow / gold metal (Presumably gold or copper).

They appear sleepy, and their only reaction to the player is sleepily opening one eye, before losing interest.

### The Oubliette

The Oubliette is the only floor with faceless Door Blockers. Because of this, it is impossible to tell if the Door Blockers in the Oubliette are sentient or not.

They have bolts in them and seem purely functional.

### The Gungeon Proper

The Door Blockers in the Gungeon Proper are made out of a grey metal, likely lead.

Judging by their stern expression they take their job more seriously than the blockers in Chamber 1.

Their reaction to the player is to move their face back and forth in a motion to imply the shaking of their head.

### The Abbey of the True Gun

The Door Blockers in the Abbey keep their eyes closed at all times, they appear calm. They are constructed out of a greenish substance, similar to the colour copper takes on after being exposed to the elements.

They do not react to the player per se, rather they begin to leak what appears to be blood from their eyes and mouth upon the player's approach.

### The Black Powder Mine

The Door Blockers in the Black Powder Mine are made of stone, and are cracked all the way through, presumably from years of slamming down into the floor.

They have no reaction to the player, and are presumably dead.

### The Hollow

Hollow door blockers are made of a translucent blue material, either glass or ice considering it cracks easily.

They appear skull-like, and similar to the Blockers from the Mines, they have no reaction to the player.

### The Forge

Door Blockers in the Forge appear to die right before the players eyes, when they slam down from the ceiling they are glowing red, made of hot, soft, metal.

Upon hitting the ground, the Blocker's soft features are misshapen by the impact.

The metal quickly cools, leaving the Door Blocker malformed and unable to respond to the player.

### Bullet Hell

Bullet Hell Door Blockers appear demonic, with horns and glowing orange eyes. They are made of an unidentifiable grey metal.

Upon being approached by the player, these Blockers will begin to flail their long orange tongue out in front of them while their eyes widen.

This seems to imply the Door Blocker is either hungry or attempting to mock / intimidate the player.

### Primerdyne R&D

A Door Blocker appears outside of the Interdimensional Horror's boss room, to lock the player inside.

It flashes into existence rather than falling, and appears to be made of some form of red light or energy.

It has a simple, neutral face and does not respond to anything the player does.