Burning Knight - Master Guide

The Master Guide for Burning Knight.
Items, secrets, achievements and everything else you need to know.

Introduction

Missing images/achievements

Some images in this guide may be missing. This is Steam's fault. Their databases are f*cked and dozens of images keep getting corrupted, not only in this guide but also in many others. This has been going on for years but Valve is ignoring the issue.
The worst part is that, once it happens to an image, it's likely to happen again. Re-uploading the image, renaming it, even changing the image slightly doesn't help.

I've replaced the achievement images like five times now and it's always a lot of work because of the way the image UI in guides works.
I also noticed that a big part of the achievement section is actually missing and I have no backup or idea when this happened. Since I haven't played the game in years, I can't give explanations on how to get them anymore so I may add default descriptions at some point, but for now I'll leave it as it is.

SPOILERS AHEAD

A main appeal of these types of games is figuring out what everything does.
This guide is full of spoilers which may ruin the fun.
I tried to put the more secret stuff in the back of the guide so you can check the items without scrolling past it. The items are, apart from revealing what they do, spoiler free.


If you have more information or find errors, please let me know!

If you find it useful, please rate it. Thank you!

Melee Weapons

Ancient Sword	Arkhalis	Blue Shovel	Cage Key	Chicken Wing	Dagger	Death Star
6 dmg	2 dmg Shoots projectiles at high health	3 strikes 2 dmg (main) 1 dmg (side)	2 dmg fast opens prison cells	2 dmg burn	1 dmg fast	1 dmg armor breaker
Glass Shard	Glass Sword	Golden Dagger	Golden Sword	Guitar	Gun Sword	Inverted Arkhalis
2 dmg fast	8 dmg breaks on getting hit ->glass shard	4 dmg fast	5 dmg	2 dmg	2 dmg (strike) 1 dmg (shot)	2 dmg Shoots projectiles at low health
Katana	Pickaxe	Red Key	Slap Stick	Spear	Svetsaber	Wooden Sword
3 dmg long bleed	2 dmg destroys rock	2 dmg fast opens red lock (lv. 4)	0 dmg very fast	1 dmg long	4 strikes 2 dmg 3 x 1 dmg	2 dmg

Ranged Weapons

Armur's Bow	Ancient Revolver	Assault Rifle	Axe	Bent Gun
charm	1.5 dmg	bursts of 3 bullets	2 dmg piercing max 1 projectile	2 dmg shoots backwards
Burst Gun	Disk Gun	Duck Gun	Emerald Gun	Flak Cannon
0.5 dmg rapid fire	4 dmg discs ricochet self damage	5 dmg heavy recoil max 1 projectile	60 dmg (doesn't drop in-game)	1 dmg projectile splits on impact
Follower	Glass Gun	Golden Axe	Golden Minigun	Golden Revolver
projectile follows your cursor explosive	3 dmg breaks on getting hit	1 dmg piercing unlimited projectiles	1 dmg rapid fire heavy recoil	4 dmg short range big bullets
Grenade Launcher	Laser Cannon	Machine Gun	Missile Launcher	Pop Gun
explosive	laser long recharge	1 dmg	explosive homing max 1 projectile	1 dmg
Portal Gun	Revolver	Shotgun	Smart Gun	What
1 dmg shoots at you from your cursor	1 dmg	5 x 1 dmg	1 dmg auto aim	1 dmg projectile launches more projectiles

Lava Wand	Rod of Discord	Spider Wand
covers target area in lava	teleports you to target	covers target area in webs

Active Items

Blank	Creates an explosion around the player that destroys bullets.	Bomb Shower	Spawns bombs at random locations around the room.
Bucket	Can be filled with snow by using it around snow tiles in Ice Ruins. Needed for looping (see looping)	Chalice of Blood	Gives +1 damage for a limited time.
D2	Rerolls items in the current room. Using it again on the same items will revert the effect. Doesn't work on consumables.	D4	Rerolls items in your inventory.
D6	Rerolls items in the current room.	Decoy	Places an explosive decoy.
Detonator	Detonates all bombs in the room. Doesn't work on TNT crates.	Weird Mushroom	Doubles all items in the room (one time use)
Dynamite Stick	Makes you explode like a bomb (you take self damage).	Ethernal D6	Rerolls or destroys items in the current room.
Tele Frog	Teleports you to a random location.	Gift	Gives you a random item.
Hammer	Breaks armor of all monsters in the room.	Homemade Dice	Rerolls items but rerolled items are hidden and appear as shapes without names.
Infinite Bomb	Places a bomb.	Maanex	Makes an enemy think. They will stand still and do nothing.
Pandora's Box	Summons the last enemy you killed to fight for you	Parcel	Restores 1/2 heart
Piggy Bank	Gives you coins	Rewind Button	Teleports you back out of an 'active' room
Sale Coupon	Reduces shop prices by 50% (one time use)	Schrödinger's Cat	50% chance to make you invincible for a short period of time 50% chance to deal 1 damage to yourself
Shadow Cloak	Turns you invisible	Sharp Blade	Deal 1 damage to yourself. Unlimited charge.
Shield Potion	Gives you a shield.	Snail	Slows time
Snowflake	Freezes all enemies in the current room. Does not work on enemies on walls.	Star	Turns you invincible for a short period of time.
Sudoku	Kills half the monsters in the current room.	The Button	Shoots in 8 directions around the player
Toilet Paper	Teleports you to the shop. Fizzles if there is no shop in the level.	Trash Generator	Gives you random consumables
Voodoo Doll	Kills all enemies in the room. (one time use)	Map Greenprints	Reveals the map.

Passive Items - Stat and Bullet Modifiers

Stat-Increasing Items

These items give only stats.

Broken Heart	Candy	Cat's Ear	Four Leaf Clover	Donut	Eye Patch	Fork	Gamepad	Glasses
+2 max hp	+1.5 fire rate	+1 luck	+2 luck	+1 fire rate -0.3 spd	+1 dmg -1 acc	+2 dmg	+1 luck +0.5 spd	+2 acc
Halo	Heart Amulet	Health Jar	Hot Dog	Mushroom	My Heart	Rock	Ruler	Spike
+2 max hp	+2 max hp +2 hp	+3 max hp +3 hp	+1 max hp +1 hp +1 luck	+0.5 spd	+2 max hp +2 hp	+1 dmg -0.3 spd	+1 range	+0.75 dmg

Bullet Modifiers

Alien Glasses	Amur's Arrow	Billard	Blank Bullets	Boomerang
Shoot 3 projectiles in an arc -5 accuracy	Arrows sometimes charm enemies	Projectiles bounce off other projectiles	Projectiles explode and destroy other bullets -0.25 fire rate	Projectiles return to you after a short distance
Bullet Chair	Can	Cell	Crab's Claw	Enraged Bullets
Shoots 4 projectiles -0.5 fire rate	Shoots 2 projectiles	Projectiles split when hitting enemies	Attacks break armor	Your bullets destroy other bullets
Exploding Bullets	Ghost Bullets	Glass	Glass Bullet	Hot Pepper
Bullets explode -1 fire rate	Bullets go through walls	Bullets break into 3 bullets on impact	Bullets go through rocks	Fire damage
Magnifier	Megaphone	Obsidian Shield	Paper Airplane	Potato
Bigger projectiles	Bullets become bigger as they travel	Removes recoil from weapons	Homing bullets -0.4 fire rate	Bullets break into two perpendicular bullets on impact
Rabbit Bullets	Random Bullets	Rear Window	Refractor	Sharp Arrow
Bullets chain to other enemies up to 2 times	Bullets cause random status effects or explode	Sometimes shoot an additional bullet backwards	Attack in all directions	Pierce through targets
Shawarma	Slime	Snowball	Soap	Soldering Iron
Random bullet size	Bullets bounce off walls	Frost damage	Bullets slow down as they travel	Fire damage
Swimming Mask	Weird Potion	Coffee Grinder	Condensed Milk	Poison Flask
Shoot 3 instead of 1	Bullets expand and contract while travelling	Small and very fast bullets +1 fire rate lower dmg	Bullets slow enemies	Poison damage
Missile	Sword Polish
homing shots -0.3 fire rate	larger melee range

Passive Items

Ankh	Beer	Bill	Black Belt	Blank Bombs	Blindfold	Bloody Chest
Getting killed teleports you to another room and heals you 100%	+Damage on getting hit	Gives you 99 coins	Explosion immunity	Bombs destroy bullets	Cannot equip weapons	Opening chests heals you
Bloody Shield	Bomb Amulet	Bomb Pack	Bomb Shell	Mega Brain	iBrick	Broken Ankh
Removes all hearts and gives you shields instead	Doubles bomb pickups (1 bomb = 2)	Your bombs explode into 4 smaller bombs	You get 2 'bomb hp'. Can be refilled with regular bombs	Time only moves when you move	Bigger levels	Getting killed has a chance to teleport you to another room and heals you 100%
Broken Guitar	Campfire in a Bottle	Car Bomb	Cartridge	Charisma Ring	Chest Ring	Coin Amulet
Rolling creates 6 projectiles around you	Frost immunity	Homing bombs	Guaranteed Dark Mage shop after bosses	-50% shop prices	Higher chance of spawning chests	Doubles coin pickups (1 coin = 2)
Orbital Crate	Cross	Crying Bomb	Cup	Cutsaw	Duck Ring	Empty Shell
Gives you a random orbital	Increased invincibility time	Your bombs shoot a ring of bullets on explosion.	Guaranteed Granny spawn after boss	Chance of piercing shots	Taking damage teleports you	Sometimes destroys enemy bullets
Eye	GPS Ring	Grenade	Iron Helmet	Ice Ring	Ice Skates	Idol
	Chance of revealing the map	Explode on getting hit	Chance to avoid damage	Touching enemies freezes them	Ice is no longer slippery	Spawns coins and enemies when taken
Iron Armor	Iron Boots	Key Amulet	Laser Pointer	Constructor	Magnet	Map
Gives shield hearts on each new floor	Spike trap immunity	Doubles key pickups (1 key = 2)	Adds a laser guide to your crosshair	Randomly spawns Lego bricks that damage enemies on contact	Attracts items	Permanently reveals the map
Marriage Ring	Matches	Mega Bomb	Mimic Totem	Mimic's Tooth	Mustache	Ninja Bomb
Guaranteed Dark Mage and Granny spawn after bosses	Faster bomb explosions	Increased explosion radius. Gives 5 bombs.	No more mimic spawns	More mimic spawns	Chance to heal on kill	Getting hit spawns bombs around the room
Orbital Multiplier	Parachute	Pet in a Box	Pet Multiplier	Restock	Reverse Card	Ring of Pain
Doubles your current orbitals	Falling damage immunity	Gives a random pet	Doubles current pets	Shops have unlimited supplies	Rolling reflects bullets	All monsters take damage when you get hit
Round Shield	Skeleton Key	Smoke Bomb	Spectacles	Spike Ring	Star Amulet	Stopwatch
Contact damage immunity -0.2 speed	Gives 99 keys	Become invisible on taking damage	Reveals secret rooms	Deal damage on contact	Increases mana	Taking damage slows time
Talisman of Foresight	Vampire Bat	Weight	Wings	Fire Ring	Scourge Ring	Eye Amulet
Reveals nearby rooms	Chance to heal on kill	Gives random orbital	Fly over holes, rocks and spikes without taking damage	Touching enemies sets them on fire	Removes all your scourge points	Missing with melee or missing 3 times with ranged deals damage to you +1 fire rate

Orbitals

Orbitals circle your character and mainly protect you from bullets.

Broken Stone	Bullet Stone	Goo	Jelly	Marshmallow	Nano Orb	Planet	Prism	Sword Orbital
Absorbs 7 hits then breaks	Shoots bullets	Big orb that absorbs bullets	Reflects bullets	Shoots bullets in the direction it's facing	Small orb that absorbs bullets	Random planet per stage (varying size)	Makes your bullets split into a volley of rainbow-colored bullets	Damages enemies it touches

Pets

Backpack	Bubbles	Crystal	Meat Guy	Shield Buddy	Shooty
Stores one weapon	Bounces around the room, damaging enemies. Splits on contact	Shooting the crystal splits your bullet into a rainbow of bullets.	Shoots at your crosshair	Follows you and absorbs bullets	Shoots in 4 directions
Skele Buddy	Snek	Spiked Cookie	Strawberry	The Eye	Wallet Buddy
Shoots a volley of projectiles opposite of your cursor	Attacks your enemies and poisons them	Bounces around the room, damaging enemies	Charms enemies it touches	Attacks enemies	Collects coins (up to 255)

Pouches

Pouches give you their respective item for clearing rooms. Batman gives batteries.

Batman

Bomb Pouch

Coin Pouch

Key Pouch

Pouch Pouch

Shield Pouch

Hats

Broken Bucket	Cap	Carved Pumpkin	Cowboy Hat	Cup Head	Diamond Helmet	Dunce Hat	Eyes	Fez	Glowing Mushroom
Gold Hat	Grandma Hat	Hair	Knight Hat	Maanex Hat	Mushroom Hat	Mustache	Null	Propeller Hat	Santa Hat
Skull Hat	Soup Hat	Stone Hat	Sunglasses	Tinfoil Hat	Top Hat	Ushanka	Valkyrie Hat	Viking Hat	Villager Hat

Consumables

Coins

Coins are the currency used in shops during a run.
You can carry max 99 coins.
A Wallet Buddy (pet) will keep collecting coins for you up to 255. This is presumably a bug though.

Copper, worth 1 coin

Silver, worth 5 coins

Gold, worth 15 coins

Platinum, worth 25 coins

Emeralds

Emeralds are used to unlock items in the main hub. They are also used for boss rush attempts (3 each).
Randomly found throughout levels.

Health, Mana and Batteries

One heart = 2 hp. Used to refill heart containers (your hp bar)

Shield hearts give you 2 temporary hp that cannot be refilled once lost.

Mana is used as ammunition for wands. Wands come with 3 mana containers and each cast costs 1 mana but also spawns 1 mana pickup at where you cast.

Batteries charge your active item.

Keys and Bombs

Keys are needed to open locked doors and chests.
Bombs can open stone chests and safes as well as blowing up rocks and walls to secret rooms.

Pouches

Contains 2 of any of the items above.

Lamps

Lamps are unlocked by completing enough achievements.
In the achievement area, south of the main room, there are four corridors with closed doors at the end of each. The doors unlock when all achievements in one corridor are complete. The lamps are down the ladder behind the door. After unlocking, the lamps are found north of the main room.
Where to find the lamps in the achievement corridors
Top left: Shielded Lamp
Top right: Gold Lamp and Explosion Lamp
Bottom left: LED
Bottom right: Fragile Lamp and Sharp Lamp

Fragile Lamp	You start with 1/2 heart max hp but you have 4 spikes (+3 damage) The glass-cannon lamp.
Sharp Lamp	Start with 2 more max hp (+1 heart)
Gold Lamp	More gold drops from enemies. There is also a shop on floor 1 instead of a treasure chamber most of the time.
Explosive Lamp	Start with 1/2 heart max hp but 6 bomb hp. 1 bomb hp = 1/2 heart. Bomb hp can be refilled by picking up bombs. Cannot use other weapons than bombs. Bombs explode on enemy contact. You're immune to explosion damage. All enemies drop bombs on death.
Shielded Lamp	Start with 1/2 heart max hp but 6.5 shield hp. You also get an iron helmet and iron armor.
LED	Missing with your melee weapon or missing 3 times with your ranged weapon hurts you for 1/2 heart.

Unlockable Items

Items in this section can not be unlocked with emeralds. All other items are either unlocked by default or can be purchased somewhere in the main hub.

Hats

Maanex Hat is unlocked by killing Maanex. He has A LOT of hp so just keep hitting him and he'll eventually die.


The Fez is unlocked by entering the secret code which can be found in a painting

Items

	Dagger Die once.
	Iron Boots Activate 100 spike traps in a single run.
	Gamepad Have a controller connected to your computer.
	Star Have 3 orbitals at the same time.
	Ice Ring Reach the Ice Ruins.
	Fire Ring Reach the Desert Palace.
	Shotgun Kill the shopkeeper.
	Broken Stone Destroy the golden rock sculpture.
	Infinite Bomb Destroy a TNT crate.
	Mimic Totem Find a mimic.
	D6 Use the green recycling machine in a shop to reroll the shop items. May take a few coins.

NPCs

Most NPCs need to be rescued before they appear in the town and in levels. You'll find them in a cell and need to find the key. The more NPCs you already rescued, the later they appear in the game, i.e. the last NPCs are found right before the final boss.
All NPCs but the Emerald Giant, Beet and the Old Man are required for the NPC Party achievement.

Hub NPCs

Traders
These are found south of the main room.

Left to right:
Hat Trader, Accessory Trader, Active Trader, Weapon Trader
They sell you their respective items for gems.


Mike opens up the boss rush northwest of the main room.


Beet is available from the start and lets you enter a seed for your run. You will only see his leaves sticking out of the ground until you talk to him.

Shops

After freeing, these NPCs appear in runs and sell you items.
Left to right:
Snek: Sells you 3 items for gold, then becomes available for sale himself (pet)
Boxy: Sells you 3 items for 2 keys each, then opens up and gives you free consumables
Gobetta: Sells you 3 items for little money but you get scourged with each purchase.
Vampire: Sells you 3 items for hearts. You can talk to him to trade 1/2 heart for 3 coins.
Roger : Sells you items for bombs

Misc

These NPCs also appear in runs after freeing them, except for the trashgoblin, which will always appear scourged.
Left to right:
Duck: Answer his question right and you get the content of his chest (50% chance)
Elon: Turns your weapon into another one. Gives you +1 scourge
Nurse: Heals you for money.
Trash Goblin: Take his scourge and he'll reward you with a chest.


Emerald Giant
Offers you to take his emeralds. If you accept, you get a random scourge and a ton of emeralds.
Not required for the NPC party achievement.


Old Man
You'll find him in secret rooms and he either gives you a free item or rickrolls you and gives you nothing.
Not required for the NPC party achievement.

Special Structures

None of the names are official.

The Dice

Can be used 3 times before it breaks.
Possible effects:
Lucky: Spawns a random chest
Unlucky: Steals your weapon. If you only have one weapon, you get an ancient revolver. Can be used to remove scourged weapons.
Nerfed: -2 max hp
Buffed: +2 max hp
Damaged: -2 hp
Restored: +1-2 hp
Scourged: +1 scourge
Cleansed: -1 scourge
Gifted: Get money
Robbed: Lose money; seems to be % based

Wishing Well

Toss coins inside. Has the same effects as the dice but doesn't break.
Possible effects:
Lucky: Spawns a random chest
Unlucky: Steals your weapon. If you only have one weapon, you get an ancient revolver. Can be used to remove scourged weapons.
Nerfed: -2 max hp
Buffed: +2 max hp
Damaged: -2 hp
Restored: +1-2 hp
Scourged: +1 scourge
Cleansed: -1 scourge
Gifted: Get money
Robbed: Lose money; seems to be % based

Fallen Hero Statue

Heals you 100% but steals your main weapon. If you only have one weapon, you get an ancient revolver. Can be used to remove scourged weapons.

Black Chest

Damages you for 4 hp (2 hearts) and spawns a random chest.

Rexcalibur

Increases your max health by 2 (1 heart) but removes all your hp but 1/2 heart.
Also gives you +1 scourge.

Gravestone of Gobbo the Great

Destroying it gives you +1 scourge and a scourged version of the weapon or active item you used in your previous run.

Golden Rock

Breaking it gives you 2-3 broken stone orbitals. It also unlocks the broken stone orbital the first time you break it.

?

Seems to heal you 100%. Charmed hearts appear over your head. Not sure what this does.

Safe

Takes 2-5 bombs to open. Contains coins, keys and one item.

Vending Machine

Throw in enough coins and you get an item. Number of coins needed seems random.
Can be destroyed with explosives for a key and some coins.

Charger

Pay gold to recharge your active item. 1 gold per 1 or 2 bars (seems random)

Proto Chest

Proto chests are linked between runs. Weapons stored in them can be retrieved from any other proto chest.

Scourge

Scourge is a mechanic to make the game harder and to improve your score.
Your amount of scourge points determines how much your score increases and how many elites and scourged items appear. The actual scourges (see table below) are curses that affect your gameplay. Getting a curse will always increase your scourge counter by 1, but it's possible to increase your scourge counter without getting a curse.

Scourge will affect items already in your inventory, e.g. your weapons and active item, so they may all of a sudden become scourged and thus can't be unequipped.

A small overview of what scourge does:

• 10% score multiplier per scourge point
  
• Scourged items cannot be unequipped
  
• Scourged weapons deal 50% more damage
  
• Scourge caps at 10 points
  
• At 10 scourge the Burning Knight will always attack you
  
• Scourge spawns more elite monsters (colored outlines)
  
• The more scourge you have, the more scourged items spawn

How to get scourged

1) Picking up a scourge
This will give you the respective curse as well as +1 scourge point.


2) Picking up a scourged item
Scourged items have a purple outline and cannot be unequipped.


3) Walking through a scourged doorway
Sometimes there are 3 scourges inside and the door won't open until you pick one, sometimes it's just a room with a pedestal or a chest.


4) Breaking a gravestone
Usually found in Castle Ruins. You get +1 scourge for breaking it and it drops a scourged version of your weapon or active item from your previous run.


5) Opening a scourged chest
This will give you a curse as well as +1 scourge point


6) Getting scourged at the dice sculpture

Getting rid of Scourge

The easiest to get rid of scourge is tossing money into the fountain for -1 scourge each use.


Another way is getting lucky at the dice statue (see picture above).

A Scourge Ring will remove all your current scourge points.

The scourge curses

Scourge of Blood	Scourge of Death	Scourge of the Egg	Scourge of Greed	Scourge of Illness
Doubles enemies	Reduces max hp to 1/2 heart	Shuffles item names	Doubles shop prices	Reduces healing
Scourge of Keys	Scourge of Lost	Scourge of Risk	Scourge of Scourged	Scourge of Unknown
Keys, coins, bombs hidden	Map shows only current room	Health hidden	More Scourge	Hidden items (appear as "?")

Elite monsters

Elite monsters have a colored outline and come in 6 variations. They mainly appear with scourge active, but you may find single ones here and there even without scourge.
Blue: Tougher to kill (more hp and/or more armor)
Yellow: Drop coins on death
Red: Presumably more damage but not sure
Salmon (light red): Shoot a circle of bullets on death
Gray: Teleports on taking damage
Brown: Drops a bomb on death

Looping aka new game +

Looping can be broken down into the following steps:

• Find the red key in a secret room in level 2
  
• Use this key to open the red lock in level 4
  
• Get the Pass from the mini game inside
  
• With the Pass, buy the bucket in level 5 for 20 gold
  
• Fill the bucket with snow in Ice Ruins
  
• Use the bucket on the second phase of the Burning Knight on the last segment of his health
  
• Fight and defeat the Dark Mage

This may sound complicated, but it's fairly easy. You get to keep the bucket for the second loop, so you only have to repeat the last steps in order to loop again.

Before you start, I recommend to avoid scourge. Scourged items cannot be unequipped and scourge can double item prices, which could mean that you can't buy or equip the bucket (active item) later on.

Find the Key

In Castle Ruins 2 you want to look for a small grey square outside the level bounds.
To find where to bomb, inspect the walls and floor around it. In this case, there is a grey tile to the right of it. If the entrance was on the wall facing down, there would be a bricked-up door frame.

Place the bomb to open the room and take the Red Key inside. It's a melee weapon and splendid against the Old King.

Get the Pass

Defeat the Old King and go to Desert Palace 2. Somewhere on the map you'll find a door with a red lock. I suggest you clear the level with the key before using it.

Talk to the NPC inside the room and pay 8 coins to start the minigame.
Position the claw above the first conveyor belt tile (it's slightly too far right in the screenshot) and press X when the pass is where it is in the screenshot. Don't waste too many tries, you will need 20 coins in the next area, though you will get some from the boss.

Buy the Bucket

With the pass proceed to kill the Pharaoh and descend to the Jungle. You'll notice that the first level is very small. If it's not, the level generation bugged out and you have to start over.

Go in the shop and buy the bucket for 20 coins.

Fill the Bucket

Continue until you reach the Ice Ruins. Go close to any snow walls (the destructible ones) and use the bucket. You now have a snow bucket.

Use the Bucket!

Once you enter the Secret Library, the snow in the bucket melts.

Fight the Burning Knight until phase 2 where he's just a burning skull.

Damage him until his hp is in the last segment of his hp bar and use the bucket.

Be careful not to kill him if you have high damage. Just spam the bucket as it has unlimited uses.
If done successfully, the game won't end and a trapdoor appears.

Fight the Dark Mage

Take the stairs down into the Techno I and engage the Dark Mage.

He teleports away and sends you through several challenge rooms with the goal of reaching him at the end. One hit takes a segment of his hp bar and makes him teleport to the next room.

If you have poison or fire damage, he will usually just tick down and pretty much die instantly.

Either way, when you have killed him, the next loop commences.

Emerald Caves (Secret Area)

Emerald Caves is a new secret area added in the Spooky Emeralds update. It's an enormous dimly lit cave with dangerous monsters exclusive to this area.
This is a high difficulty area where you can quickly get lots of emeralds. It replaces Caves II and you won't fight the Old King thus missing out on his items.

How to Access

In the very first level, look for a small green diamond on the floor. Place a bomb on top of it to uncover the stairs leading to Emerald Caves.

Achievements

Bosses and Levels

Achievements for completing levels and defeating bosses.

Guru
Finish the tutorial

Dry'n'Hot
Reach the Desert Palace

Buzzing Bees
Reach the Ancient Jungle

Sacred Texts
Reach the Secret Library

Democracy                                        
Defeat the Old King

Mummified
Defeat the Pharaoh

Sting Operation
Defeat the Queen Bee

Let It go
Defeat the Ice Queen

Burning No More
Defeat the Burning Knight

Dark No More
Defeat the Dark Mage
Final boss when looping (see looping section). He's currently a pushover.

Stuck Forever
Loop Once
Once you defeat the Dark Mage, you start over with all your items.

Shortcuts

After the first boss, an NPC waits at the stairs in the new area. Pay him enough money to create a shortcut. You can do this over multiple runs. Once the shortcut is built, you will find him at the stairs in the next area and so on.

Desert Palace Shortcut
Fix the shortcut to the Desert Palace

Ancient Jungle Shortcut
Fix the shortcut to the Ancient Jungle

Frozen Ruins Shortcut
Fix the shortcut to the Frozen Ruins

Secret Library Shortcut
Fix the shortcut to the Secret Library

Item-related Achievements

You will get most of them while simply playing the game. None of the items is rare or hard to obtain.
Shielded
Obtain a shield heart
Found randomly in chests or sold in shops.

Scourged Weapon
Obtain a Scourged Weapon
Weapons with purple outline. See scourge section.

Scourged
Pickup a Scourge Token
Commonly found with NPCs asking you to free them from their scourge.

Scourge King
Get 10 Scourge points
Keep picking up scourge items. The more scourge you have, the more scourged items will appear until literally everything you find is scourged.

Toilet Paper
Obtain 99 coins
The easiest way is to collect the bill, which gives you 99 coins. Otherwise just save your money. You get a lot on later levels. Use the gold lamp if you have it unlocked.

Shopper
Buy an item in any shop
There is a shop on nearly every floor.

The Star of the Show
Obtain 3 orbitals
Check the orbital section.

Happy Lil Family
Obtain 3 pets
Check the pet section.

Unlocker
Unlock an item
Use emeralds to buy an item in the town.

Fancy Hat
Buy a hat
Use emeralds to buy a hat in the town.

Fashion Matters
Unlock every single hat
All hats but two can be bought for emeralds in the town. See unlockable items for how to get the other 2.

Collector
Unlock all items
Some items need to be unlocked by doing things in-game, see unlockable items.

Monsters and Gameplay

The Most Popular Achievement
Die

No U
Kill an enemy with its own projectile
Pick the wooden sword or dagger as your starting weapon. Hit a bullet to reflect it.

Treasure Hunter
Find a secret room
Secret areas can be opened with bombs. Look for "solid" areas outside the level walls that appear just like undiscovered rooms but with no connection to them. Then look for different ground or wall tiles to figure out where to bomb. Explosive weapons also work.
There is a guaranteed secret room in level 2 (see looping section).

Dodge Overlord
Finish a floor without getting hit
Very easy, once you got the hang of the game. Sometimes the stairs to the next level spawn right next to the level entrance.

Dodge Master
Kill a boss without getting hit
Also rather easy. Use a melee weapon on the Old King. Dodge his first jump and make sure to not get hit, then go in close and chop away. His skulls get destroyed by your swings.

Weapon Free
Defeat a room without using a weapon once
The easiest way is to use the Voodoo Doll, which instantly kills all monsters in the room. Else just dodge attacks while your pets do the killing.

Sharp Matter
Activate 100 spikes in a single run
Has to be 100 different spike traps. Running over the same trap 100 times doesn't work.

Jump Scare
Find a Mimic
Mimics are monsters disguised as chests. They spawn randomly. Finding a Mimic's Tooth dramatically increases the chance for one to appear.

Van No Gogh
Destroy 100 paintings
Can hardly be missed. You destroy paintings all the time while fighting.

Cat without a hat
Find the cat painting
Ultra rare painting.
Seed: RUHCM20I on the first floor in a room to the right.

NPC Achievements

Rescue Operation
Save an NPC
Find an NPC locked up in a cell, then look around for the room with the Cage Key. Take it back to the NPC to free it.

[Taake]

Added. Thanks!

[Cummies]

Took me a while to find it again, it's a single use active item with the description: "Reveals the map". Sprite: https://i.imgur.com/ESXupEI.png

[Taake]

Can you give me the in-game description? I'll add it later.

[Cummies]

Map Greenprints item is missing

[Ruston]

Oh dang, your right! Good catch.

[Taake]

Healing to full and teleporting is what the ankhs do so you probably had one of those on you.

[Ruston]

I had the cat's ear on me when I got a killing blow. A quick pop up said "sick dodge" and warped me back to the start of that floor and gave me full health.
I'm pretty sure I've had the ear before and died normally, so maybe it's a chance thing.

[Ruston]

Oh, I was searching megabrain without a space, no wonder i missed it.

[Taake]

Mega brain is already in. I added the other two. Thanks!

[Ruston]

the effect for "rabbit bullets" when ever you hit someone with a bullet another bullet pops out of them and jumps to the next enemy. It looked like it could chain at least 2 jumps.