Chest Guide (Qualities & Mimics)

Chests are the primary source of items and guns in Enter the Gungeon. They always appear in Chest room, and can also be found after clearing rooms, from 射的屋 – ウィンチェスター's game, or in secret rooms. Chest color corresponds to item 品質, and higher floors spawn better chests more often.

Chest room

Chest room chests are always locked and require a key. On each floor, one chest always contains a gun and the other always contains an item. This rule only applies to normal openings — destroying a chest bypasses this allocation.

Fuses

Entering a room with a chest has a chance (increased by Curse) of a fuse appearing next to it. If the chest isn't opened in time, it explodes and the contents are lost. Any アイテム or 銃 that sprays liquid (except oil) can extinguish the fuse. Synergy Chest found in Chest room always have a fuse.

ミミック

Any standard chest can be replaced by a ミミック. The chance increases with each point of Curse. Rainbow Chest, Synergy Chest, and Glitch Chest can never become a ミミック. Rat Chest is the exception: it can be a ミミック, it just never becomes one from ミミックの歯の首かざり.

How to identify a ミミック

• Shoot the chest once: if it's a ミミック it immediately reveals and attacks; if not, the chest takes no damage (explosions still destroy it)
• Watch the chest's mouth: a ミミック's mouth subtly moves as if breathing
• Owning a 忠犬: the dog barks when you approach a disguised ミミック
• Chest room chests are always locked: an unlocked Brown Chest seen in a Chest room (or in the cellar-like secret room that always holds 3 chests) is always a ミミック. Chests from room clears and elsewhere are often unlocked anyway, so this tell does not apply there
• 使い慣れたロックピック never provokes a ミミック, whether the pick succeeds or fails; ドリル breaks the lock and provokes it immediately

Shooting to reveal a ミミック does not consume a key. Defeating it drops the original contents plus extra loot. A ミミック's HP and damage scale with the chest's 品質 — a S 品質 ミミック is far more dangerous than a D 品質 one.

Holding ミミックの歯の首かざり forces all standard chests to become ミミックs. Combine it with ミミックの指輪 and ミミックs won't attack you, letting you open every chest for free with no key and no fight.

Destroying chests

Shooting a chest destroys it for a chance at some loot, but not the full contents. Only the player's bullets can break chests — enemy bullets cannot, though enemy explosions still deal damage. Rat Chest cannot be destroyed.

• ガラクタ — base weight 0.6; multiplied by 1.2 if holding at least one key. If ガラクタ has not been unlocked yet, this ガラクタ has a 20% chance to be replaced by ガラクタ
• ハート（ハーフ）— weight 0.2
• Explosion — weight 0.1
• アイテム or 銃 at lower 品質 than the chest — weight 0.1; with 『宝箱の構造学』, ガラクタ and explosions are removed from the destruction table and replaced with pickups (キー, ハート, 弾薬, and so on), and the dropped 品質 improves as well
• 純金製のガタクタ (requires unlock) — weight 0.005; multiplied by 3 if holding ガラクタ
• ガラクタ (requires unlock) — weight 0.01

Drop chance = that item's weight divided by the sum of all applicable weights. Brown Chest (D 品質) chests don't downgrade further, so they always drop an アイテム or 銃 if the item/gun slot is rolled.

Standard chests

The five standard colours map to the five 品質 tiers. When a floor generates a chest, its colour is rolled from the table below, weighted more heavily toward high 品質 the deeper you go. These figures do not account for Magnificence downgrades, so what you actually receive can be lower — see What Is Magnificence?.

That is the current (Advanced Gungeons & Draguns) loot table. The Classic loot table can be switched back on from the Gameplay section of the Options menu in エントランス or on the title screen.

Its first three floors are noticeably more conservative: 弾丸王の城塞 is 42.5 / 35 / 15 / 5 / 2.5, メインガンジョン is 20 / 32.5 / 35 / 9 / 3.5, and ブラックパウダー採掘場 is 10 / 22 / 50 / 12.5 / 5.5 (listed D 品質 through S 品質). Floors 4 and 5 are identical on both tables.

Brown Chest

D 品質, most common. Some Brown Chest contain only pickups (ケーシング, hearts, blanks) with no アイテム or 銃.

Blue Chest

C 品質. Has a higher chance of dropping アイテム compared to other chest types; 銃 drops are relatively less common.

Green Chest

B 品質. It carries none of the quirks the other colours have — the contents are simply a B 品質 アイテム or 銃.

Red Chest

A 品質. Opening a Red Chest that contains a heart-increasing item also yields an extra key.

Black Chest

S 品質, the rarest standard chest. When a floor generates several Red Chest and Black Chest chests, it raises Magnificence (rarity suppression), making later high-tier rewards more likely to be downgraded — see What Is Magnificence?.

Special chests

Synergy Chest

After rescuing シナジー商人 – シナーグレイス, normal chests have roughly a 5% chance to be replaced by a Synergy Chest, which always has a fuse.

Opening one reveals its color, which determines what's inside. One is guaranteed to spawn after defeating the デッドキング (except in Classic mode). Synergy Chest can also be purchased directly from シナジー商人 – シナーグレイス.

• If blue, it drops an アイテム or 銃 that completes a synergy with something you're already carrying.
• If red, it drops a random アイテム or 銃. Completing a synergy is possible, but not guaranteed.

Rainbow Chest

Rainbow Chest have a 0.0333% base chance to replace a normal chest (room-clear reward chests have an additional 0.001% chance, for a combined ~0.0343%). They are never locked and provide 8 アイテム or 銃 (~S 品質 15%, ~A 品質 54%, ~B 品質 31%). Rainbow Chest can also disguise as Brown Chest — this variant only unlocks after breaking at least 5 ordinary Brown Chest; shooting with a liquid weapon or opening it reveals it.

Glitch Chest

A 0.1% chance variant that only appears on floors 1–3. Two conditions must be met: the player must have entered Enter the Gungeon more than 10 times, and must have defeated イーブルスコープ at least once. Opening one instantly transports the player to a glitch version of the next floor containing only a boss room with two Glitch イーブルスコープ.

Defeating them rewards 7 銃 or アイテム plus the standard boss drops and a floor full of pickups. Because the floor drops you straight into the boss room with no chests along the way, all 7 pedestals will normally hold guns as long as you have not picked up a gun on that floor before the bosses die.

Reward pedestals have a high chance of being a 台座型ミミック, which also makes this a reliable way to run into one and unlock the ミミックガン (see All Unlocks Guide: Characters, Guns & Items).

Rat Chest

Found exclusively in the Resourceful Rat's Lair. They require ネズミのカギs, dropped during the third Punch-Out phase of the かしこいネズミ fight (up to six per fight).

After the fight, four Rat Chests appear in random order, containing the エメンテーラー, 食べかけのチーズ, ネズミのお宝袋, and ラットブーツ. Collecting all four transforms the character's appearance. Rat Chests cannot be destroyed. The entrance to the lair is covered in Resourceful Rat's Lair.

• Lockpicking options are limited: KEY-47 and 最期のカギ cannot open Rat Chests, but 使い慣れたロックピック and ドリル can
• In co-op, if the かしこいネズミ is killed while one player is dead, every Rat Chest can be opened without a キー (this does not revive the partner)
• If you already obtained any of the four Rat items before beating the Rat, opening a Rat Chest gives an A 品質 tier アイテム or 銃 instead
• If any of the four Rat items are still locked, there is no way to tell in advance which chest holds the remaining one

Truth Chest

Found in a secret room with 真理の探求者 – ブラザー・アルバーン, with a guaranteed appearance in the 正銃教団修道院 (see 正銃教団修道院).

Answer his question — it cannot be answered wrongly — to open it for free; it contains 1–2 random-quality pickups, アイテム, or 銃. Destroying it instead drops ウソの代償. It can also be forced open with KEY-47; either destroying it or forcing it open makes 真理の探求者 – ブラザー・アルバーン vanish on the spot.

Revival Chest

Co-op exclusive. When one player dies, all unopened chests in the room are replaced by Revival Chests. Opening or breaking any one of them revives the dead player; the remaining chests revert to normal. No key is required. A chest that was originally a ミミック simply revives the partner and does not fight back. Check the map first to find the lowest-quality chest to use for the revival.