The banner that pops up right before a battle between a Boss starts.
"Boss inside. You have been warned."
Bosses are strong enemies with high damage and hp found on the 5th level of each floor (levels x-5). Based on the current biome, Bosses are chosen at random.
- After defeating a Boss in level mode, a Golden Chest will spawn. This does not occur at 4-5, as there is no point in giving the player a weapon after the game is over.
- Two Bosses will spawn if the player has the
Boss DuoFight with 2 slightly nerfed bosses in each Boss roomchallenge. After defeating both of them, 2 Golden Chests will spawn, with the exception above.- This condition can spawn bosses from different biomes. It will also cause static bosses to be offset from the center, as there are now two bosses. The Boss arena is always the one of the left Boss, which spawned first.
- The summoned minions of the Boss can be alive after its death. This can happen if the boss dies before the minions appear from the summoning attack, as any minions already summoned will die with the boss.
- Since Update 1.5.1, Boss rooms are indicated by red entrances in some versions, which turn normal after entering the room. This entrance is not to be mistaken with an all-champions room, in which all the enemies in the room are Champions.
Enraged Phase
If the Boss has less than half of its total HP, it will become enraged 
and will start to use more powerful or new attacks, as well as attacking much faster and more aggressively. In addition, Enraged Bosses will recover from status effects faster than usual. At half of its total HP and upon death, they will also drop 10 energy orbs for players to recover. Upon death, they will drop a lot of Gold, materials, and energy.
There are exceptions, however:
- Bosses like Giant Crystal Crab, Giant Golden Crab, Cave Ice Bug, ◿ ⊣⊢ ⨀ ϟ ‡, and Anubis can restore health during the enraged phase, but restoring over half HP once enraged does not stop the enraged phase.
- The Baby Dragon Bros have separate health bars, but they're shown as one. This means that either one will become enraged once their health drops below half.
- The same applies during the
Boss DuoFight with 2 slightly nerfed bosses in each Boss roomchallenge.
- The same applies during the
List of Bosses
Here is a list of all Bosses, sorted by floor:
Floor 3 | |||
|---|---|---|---|
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| Spaceship | Varkolyn Leader | Zulan The Colossus | Floating Laser UFO |
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| Volcano | Volcanic Sandworm | Baby Dragon Bros | Anubis |
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| Neo Isle | Iron Pirate King Level | Iron Will Wavebreaker | |
Floor 4 | ||
|---|---|---|
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| Monolithic Range Ruins | Ancestor's Legs | Golem - Ancestor |
Drops
- Organic Matter
- Varkolyn Leader, Nian, Baby Dragon Bros, Gold Mask, Grand Slime, King Snow Ape, Easter Bunny, His Horse.
- Ironstone
- Volcanic Sandworm, Floating Laser UFO, Zulan the Colossus, Prehistoric Colossus, Gold Mask, Phantom King, Skeleton King, C6H8O6, Grand Knight, Dark Grand Knight, Giant Crystal Crab, Giant Golden Crab, Cave Ice Bug.
- Parts
- Volcanic Sandworm, Floating Laser UFO, Zulan the Colossus, Prehistoric Colossus, C6H8O6, Cave Ice Bug.
- Timber
- Christmas Treant, Anubis, Snowman King.
- Battery
- Floating Laser UFO, Zulan the Colossus, Prehistoric Colossus, C6H8O6, Cave Ice Bug.
- Fertilizer
- Grand Slime, Headless Knight.
- Magic Fragments
- Any: Goblin Priest, Grand Wizard.
- Red: Baby Dragon Bros.
- Blue: Zulan the Colossus, Zulan In Ruins
- Gold: Anubis, Gold Mask.
- Green: Cave Ice Bug, Volcanic Sandworm.
- Obsidian: Floating Laser UFO.
- Purple: Varkolyn Leader.
- Cyan: Iron Pirate King Level, Iron Will Wavebreaker.
- Seeds
- Any: Devil's Snare, Christmas Treant.
- Devil's Snare: Devil's Snare.
- Prehistoric Colossus: Gear Flower, Ironwood.
- Carrot: Snowman King, Easter Bunny.
- Mandrake: Varkolyn Leader.
- Dragon Fruit Tree: Baby Dragon Bros.
- Xmas Tree: Christmas Treant.
- Snow Lotus: King Snow Ape.
- Red Spider Lily: Headless Knight (Body).
- Crystal Mushroom: Giant Crystal Crab.
- Golden Mushroom: Giant Golden Crab.
- Caterpillar Fungus: Volcanic Sandworm, Cave Ice Bug.
- Heptacolor Viola: Grand Knight, Dark Grand Knight.
- Cassettes drops:
- Any 1-5 Boss: Rival Cassette.
- Any 2-5 Boss: Threat Cassette.
- Any 3-5 Boss: Finale! Cassette.
- Any Glacier Boss: Blizzard Cassette.
- Any Relics Boss: Splendid Shrine Cassette.
- Any Knight Kingdom Boss: Heroes' Avatar Cassette.
- Any Dungeon Boss: Dark Dungeon Cassette.
- Any Halloween Boss: Wraith on Halloween Cassette.
- Cave Ice Bug: Buried Secret Cassette
- Torn pages drops:
- Anubis: Torn Page (Pray, Priest), Anubis Skin Fragment (Priest).
- Varkolyn Leader: Torn Page (Vine, Druid).
- Cave Ice Bug: Torn Page (Close Air Support, Officer).
- Other drops
- Any Boss: Super Buddy Blueprint.
- Easter Bunny: Bunny Lady Skin Fragment (Necromancer), Call of the Spring Cassette.
- Nian: Happy New Year Cassette, Dragon Dance Armor Blueprint.
- C6H8O6: C6H8O6 Fragment, C5H6O5 Blueprint.
- Zulan the Colossus: Zulan Fragment, WiFi Booster Blueprint.
- Devil's Snare: Devil's Snare Skin Fragment (Elf).
- Prehistoric Colossus: Shi Skin Fragment (Berserker).
- King Snow Ape: Torn Page (Leap, Berserker).
- Phantom King: Phantom King Skin Fragment (Vampire).
- Grand Wizard: Grand Wizard Skin Fragment (Witch).
- Headless Knight (Body): Headless Knight Skin Fragment (Berserker).
- Grand Knight: Grand Knight Skin Fragment (Paladin).
- Iron Pirate King Level: King's Emblem (Paladin).
- Baby Dragon Bros: Ruler's Seal (Engineer), Nuwa Crystal (Robot).
- Boss Weapons:
- Golden Cudgel (Gold Mask)
- Fist Bump (Prehistoric Colossus)
- Staff of Shooting Stars (Goblin Priest)
- Nirvana Cross (Easter Bunny)
- Agitated Trunk (Christmas Treant)
- Cannibal Plant (Devil's Snare)
- Snow Ape's Longbow (King Snow Ape)
- Snowman Eagle (Snowman King)
- Crystal Crab's Katana (Giant Crystal Crab)
- Golden Crab Warhammer (Giant Golden Crab)
- Grand Knight's Sword (Grand Knight)
- Deep Dark Blade (Dark Grand Knight)
- Staff of Wizard (Grand Wizard)
- Magic Gloves (Grand Slime)
- Bomber (C6H8O6)
- Staff of Skeleton (Skeleton King)
- Extra Crown (Phantom King)
- The Emperor's New Gun (Headless Knight)
- Super Rocket Fireworks (Nian)
- Grave Guard's Hatchet (Grave Guard Scarab Archon)
- Dark Shadow (◿ ⊣⊢ ⨀ ϟ ‡)
- Ordeal in Disguise (Cave Ice Bug)
- Sandworm (Volcanic Sandworm)
- Dragon Bros' Sniper Rifle (Baby Dragon Bros.)
- Staff of Anubis (Anubis)
- Floating Gun, Floating Laser (Zulan the Colossus)
- Varkolyn Assault Rifle (Varkolyn Leader)
- Dead Star Laser Gun (Floating Laser UFO)
- Unfinished Shark Gun (Iron Pirate King Level)
- Captain's Medal (Iron Will Wave Breaker)
- Oathkeeper & Oathbreaker (Sir Violet)
- Warhammer of Sealed Souls (Sir Sangria)
Related Achievements
|
Boxer
Kill 20 bosses with One Punch Reward: none |
Special Attacks
Splits into small snowballs upon hit. Deals 4 damage. Found in Snowman King and King Snow Ape bosses.
May follow targets. Cannot be destroyed by melee attacks. Deals 3 damage and freezes. Found in Snowman King and King Snow Ape bosses.
Can block movement and cause 4 damage. Found in the Giant Crystal Crab bossfight.
Can block movement can cause 6 damage, can inflict Burn. Found in the Giant Golden Crab bossfight.
Can pass through walls and shares the same characteristics of an enemy. Found in the Snowman King bossfight.
Spawns a fire pool upon landing. Found in the Easter Bunny bossfight.
Spawns a poisonous fire pool upon landing. Found in the Easter Bunny bossfight.
Releases a circle of 2-damage bullets that can freeze. Found in the Easter Bunny bossfight.
Spawns a goblin guard enemy. Found in the Easter Bunny bossfight.
Spawns a Dire Boar enemy. Found in the Easter Bunny bossfight.
Summons meteors. Found in the Easter Bunny bossfight.
Can pass through walls. May cause Burn upon exploding and cannot be stopped. Found in the Nian bossfight.
Places a fire pool upon landing. Found in the Nian bossfight.
Will split into smaller cluster bullets upon hitting a wall or getting hit by a melee attack/melee weapon. Found in Nian, Dark Grand Knight and C6H806 bosses.
Cannot be destroyed. May spill out long bullets.
Can pass through walls. Found in the Zulan the Colossus bossfight.
Explodes after a while or if is hit with projectiles/melee attack or weapon. Spawned by the gray Baby Dragon Bro.
Places a green fire pool upon landing and deals 2 damage quickly. Poison and Fire Immunity reduce the damage by 1 each, having both makes the player immune. Found in the Headless Knight bossfight. Can be bounced.
Spawns a purple pool that damages the player and causes the Weary status effect. Found in the Anubis bossfight.
Spawns mummies every 2 seconds. Found in the Anubis bossfight.
Homing and can cause Burn. Unlike other homing projectiles, never stops homing in on the target. Found in the Floating Laser UFO bossfight.
Trivia
- Before Update 1.3.5, Bosses used skull symbols when enraged.
- The symbol used now is pulsing veins.
- Before Update 1.4.1, there used to be two portals that appeared after beating the first boss. The left one took the player to the Knight floor and the right one took the player to the Dungeon floor.
- A glitch occurred during Update 2.3.0 such that boss shockwaves were much bigger than expected.
- For a while, bosses had a lower amount of Health, and their Champion forms had 1.5 times that HP. However, somewhere after Update 4.0.0, their regular HP was increased by 1.2 times, and the Champions have 1.25 times this new value, such that the regular HP was higher but the Champions remained the same.
