Mini-boss Boss Bars

• Reminiscence (Forge 1.20.1)
• Mystic's Monstrosity (NeoForge 1.21.1)

Abominations Infection • Parasite Mother • Flugzeug • Teufelskerl • Versuken • Keeper

Ad Astra: More Structures • Super Golem • Super Raptor • Super Mogler • Super Lunarian • Super Evoker

Alex's Caves • Forsaken • Gum Worm • Hullbreaker • Tremorzilla (onIy avaiIabIe and triggered with the /mbbbforceshowbossbars command)

Alex's Mobs • Warped Mosco

Apotheosis • All Apothic Bosses (with boss bar designs that vary by tier)

Aquamirae • Eel • Mother of the Maze

Arcanmira • Glarecadaver

Arthropod Phobia Expansions • Termite Tunneler Queen • Spider Snatcher • Spider Prowler • Spider Reaper • Solifuge Skulker • Centipede Evictor • Crab Constrictor • Arthropleura Abomination (if wild/untamed, boss bar disappears and will no longer appear again once tamed) • Wasp Nemesis • Spider Infestor • Spider Matriarch • Spider Moth • Scorpioid Bloodluster • Draconic Voidlasher • Arachnoid Trisector • Diabolos Decimator

Battle Towers • Battle Tower Guardian

Battle Towers - Thexian • Battle Tower Guardian

Blades of the Fallen • Bandit Leader

Bones And Swords • Lost Captain • Skeleton Captain

Born in Chaos • Spiders Mother • Glutton Fish • Dire Hound Leader • Nightmare Stalker • Krampus • Missionary • Supreme Bonescaller • Sir Pumpkinhead • Lifestealer

BossCraft Respawn: Unofficial Port • Fire Lord • Rogue Master • Spider Queen • Pharaoh • Grim Reaper • Megablock

BossCraft Respawn: Overlord • King Scorpion • Ice Devil • Overlord

Brainrot Protocol • Cyborg Tralalero Tralala • Cyborg Tung Tung Sahur

Brazil Legends • Capelobo • Mapinguari • Mapinguary

Cannibal Conundrum • Cannibal Butcher

Catzilla • Catzilla (if untamed, boss bar disappears and will no longer appear again once tamed)

Choup's Drakvyrn Mod • All Drakvyrn variants (if wild/untamed, boss bar disappears and will no longer appear again once tamed) • Drozen (if wild/untamed, boss bar disappears and will no longer appear again once tamed) • Drakthal (if wild/untamed, boss bar disappears and will no longer appear again once tamed)

Classic Battle Towers (Sinytra Connector required) • Battle Tower Golem

Creation and Adventure • Shaman Monkey (Mono chamán) • Nether King (Rey del nether)

Creature Compendium • Netherite Forge (when first awoken and hostile)

CrimsonSteve's More Mobs • Cyborg Vindicator • Reanimated Temple • Chad Creeper Golem • Lava Mutant Zombie • Elite Ender Ravager

Crimson Steve's Mutant Mobs • Creepis (mod version beta 1.1.2 & newer) • The Giraffe (mod version beta 1.1.2 & newer) • Lava Mutant Zombie (mod version beta 1.1.2 & newer) • Stunt Skeleton (mod version 1.6.0) • Chad Withered Boxer (mod version 1.6.0)

Desert Behemoths: Sandworms! • Sandworm (boss bar shows up when near any player with tnt (minecarts) in their inventory, bar reduces for every player-inflicted explosion)

Desert Tombs • Pharaoh

dodo's mobs • Bone Chimera

Dungeons and Combat • Kamath • The GraveWatcher • High Priest • Pyro Knight

Dungeons Content • Corrupted Cauldron • Ancient Guardian • Redstone Golem • Redstone Monstrosity • Mushroom Monstrosity • Obsidian Monstrosity • Redstone Pigman Monstrosity • Tempest Golem • Arch-Illager

EEEAB's Mobs • Corpse Warlock • Relic Earthshaker

Ember And Icicle • Iron Roller • Ember Effigy (specifically that amped up version that guards a chest containing a key)

Faded Conquest II • Aero Guardian

Fathomless Crimson • Herald • Undaunted

Fights&Frights • Reanimated

Florcraft • Verdant Guardian • Aqueous Guardian • Arid Guardian

Foolish • Wendigrudge • Enderoller Alpha • Gemstalline • Scarlant Knight • Berserker Shaman • Chimera • Peafoul • Bunyip • Flickerlong • Sandwinder

Forgotten Battle Towers • Battle Tower Golem

Friends & Foes • Wildfire

From The Ground Up • Charged Creeper

From The Shadows Reborn • Nehemoth • Bulldrogioth

Frostiful (Sinytra Connector required) • Frostologer

Frosty • Frosty

Fungal Infection: Spore • Proto Hivemind • Sieger • Howitzer • GazenBreacher • Hindenburg • Hohlfresser • Grakensenker • Stahlmorder • Leviathan

Galosphere • Berserker

Greek Fantasy • Arachne • Circe • Cretan Minotaur • Medusa

Hadean Breathe • Flame Guardian • Armored Beast

Hellstone Golem • Hellstone Golem

Ice and Fire (Community Edition) • Fire Dragon (if wild/untamed, disappears when asleep) • Ice Dragon (if wild/untamed, disappears when asleep) • Lightning Dragon (if wild/untamed, disappears when asleep) • Cyclops • Gorgon • Hydra

Illage and Spillage: Respillaged • Spiritcaller • Freakager & Ragno • Magispeller

Illager Revolution • Illager Blade Knight

Inka • Viraicocha

Intense Horror • Mourning Wood • Reaper

Iron's Spells 'n Spellbooks • Archevoker

Knighy's Mystical Creatures • Super Spook (if wild/untamed, boss bar disappears and will no longer appear again once tamed) • Dodeena

L_Ender's Cataclysm • Amethyst Crab • Coralssus • The Prowler • Ignited Revenant • Wadjet • Kobolediator • Aptrgangr • Clawdian • Ender Golem

Land of Goblins • Creeptus • Shiny Undead • Crabtilus • Wither Fungus

Lands of Icaria • Captain Revenant • Arachne

Legendary Monsters • Overgrown Colossus • Frostbitten Golem • Skeletosaurus • Lava Eater • Withered Abomination • Shulker Mimic • Endersent • Ancient Guardian • Possessed Paladin • Dune Sentinel • Annihilation Pursuer

Leo's Illagers • Summoner • Clownager • Lightningcaller

Luminous: Overworld • Tree Ent • Hermit King • Mummy • Sea Viper • Yeti • Vile Gator • Phoenix • Bone Stalker • Witch Doctor • Cherry Tree Ent • Golden Hermit King • Red Mummy • Coral Sea Viper • Arid Yeti • Frozen Vile Gator • Wind Phoenix • Bogged Bone Stalker • Woodland Witch Doctor • Gilded Tree Ent

Luminous: Beasts • Tree Ent • Hermit King • Mummy • Sea Viper • Yeti • Vile Gator • Phoenix • Bone Stalker • Horseless Headsman • Witch Doctor • Crimson Spitter • PigIin Executioner • The Furnace • Cherry Tree Ent • Golden Hermit King • Red Mummy • Coral Sea Viper • Arid Yeti • Frozen Vile Gator • Windy Phoenix • Bogged Bone Stalker • The Scarecrow • Woodland Witch Doctor • Warped Spitter • Basalt Executioner • The Soul Furnace • Gilded Tree Ent

Luminous: Nether • Piglin Executioner • Mushlin King • The Furnace • Basalt Executioner • Warped King • The Soul Furnace

LUNACY: The World of RPG • Ender Monstrosity

Moar Bosses • All elemental bosses

Mobstein • Witherstein (phase 1)

Mofu's Broken Constellations • Eye Guardian Golem

Mokels RPG • Elemental • Tainted Flame • Guardian of the First Flame

Monster Expansion • Leivekilth • Skrythe • Rhyza • Rakoth • Ignathos

Monster Hunter: Heaven and Hell • Yian Kut-Ku • Arzuros • Khezu • Malfestio • Tetsucabra • Blangonga • Nargacuga • Uragaan • Deep Sea Somnacanth • Rhenokaika • Zamtrios • Plesioth • Basarios • Barioth

Monstrosteve • Monstrosteve

More Critters • Mightshroom • Frightshroom

Mutant Addition Mod • Mutant Bogged • Mutant Pillager

Mutant Iceologer Mod • Mutant Iceologer

Mutant Monsters • Mutant Zombie • Mutant Skeleton • Mutant Creeper • Mutant Endeman

Mutant Wolf • Mutant Wolf

New Classic Battle Towers • Golem Guardian

Nexus Infection • Torment Root

Occultism • Possessed Warden • Possessed Elder Guardian • Unbound Afrit • The Wild Hunt (in the style of an event, boss bar scales with the total amount of health of all skeletons initially present in the event)

Paranormal Pleistocene • Necrosloth

PasterDream • Wind Knight

Phayriosis Parasite Infection • Flesh Amalgamation • Converted Warden • Converted Dragon

Pigzilla • Pigzilla

Plenty of Golems • Guardian of the Deep

Printa's Arsenal • Soul Knight

Queen Bee • Queen Bee

Rats • Rat King

Razor Tyrant: The Reign of Terror • Razor Tyrant

Realm RPG: Imps & Demons • Ancient Demon Lord

Royal Variations • Royal Enderman

Saint's Dragons • Raevyx (if wild/untamed, boss bar disappears and will no longer appear again once tamed) • Volitans (if wild/untamed, boss bar disappears and will no longer appear again once tamed) • Ignivorus (if wild/untamed, boss bar disappears and will no longer appear again once tamed)

Sky Lands • Sky Automaton Boss • Glaciated Dragon • Igneo Robo Feline • Sky Pharaoh

Snow Mercy • Headmaster

Sons of Sins • Prowler • Kelvin • Curse • Blüd • Butcher • Walking Bed • Wistiver

Tax' Big Boss • Enforcer

Terramity • Uvogre • Hellrok

The Awakening of the Elder Souls • Farn Monstrosity • The Guardian of the Eclipse

The Cardinal Sins • Stone Warrior • Drakara, Eternal Mourner • Cursed Knight

The Ceilands • Castle Lord

The Conjurer • Conjurer

The Farlanders • Titan

The John Mod Reborn • Mega John

The Orcs! • Orc Boss

The Quackening • Axethrower

The Ravenous • The Ravenous

The Stellar Conquest • Mekkron

The Undead Revamped • Clogger • The Heavy • The Pregnant • The Royal • The Horrors • The Dungeon

The Undergarden • Forgotten Guardian

Threateningly Mobs • Nature Spirit • Riptooth • Earthloong • Titan Rabbit • Armor of Desert • Lich • Inferno • Solscarab Maximus • Hydra • Regalhart • Steelboar • Basalt Wyvern • Terradragon • Moon Priest • Ferox Iceworm • Ferox Deathworm • Abyss Fang • Scorch Golem • Skeleton Predator • Executioner • Ice Broodmother

TofuCraftReload • Tofu Gandlem

TOWERS OF CHAOS • Nether Obelisk

Ultris: Boss Expansion • Illusioner

Under the Moon • Wendigo

Unnamed Monster • Great Jirros • Great Jagras • Bulldrome • Jyuratodus • Plesioth • Barroth • Jade Barroth • Anjanath • Rathalos • Zinogre • Stygian Zinogre

Useless Reptile (Sinytra Connector required) • Lightning Chaser (if wild/untamed, boss bar disappears and will no longer appear again once tamed)

Vampirism • Vampire Baron

Vanilla Expanded - Orcz • Big Orc Boss

Vanilla Mob Minibosses • Natureologer • Knightlander • Withered Cultist

Wesley's Roguelike Dungeons • Corrupted Blaze • Corrupted Endermen • Corrupted Guardling • Corrupted Iron Golem • Corrupted Skeleton • Corrupted Zombie • The Beyond • The Corpse • King Snake • Aquaguard • Crystal Spider • Giant Mummy • Face of the Maw • The Fallen

Wizard Tower • Wizard

Youkai's Homecoming • Ex Rumia

YUNG's Better Desert Temples • Pharaoh

Zombie Nightmare Expansions • Brutaliser

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Mods I thought of including support for but ultimately decided not to:

• Mutant More | Reason: The mod already comes with a config option to enable boss bars. Not to mention they even come with custom designs. Support for this mod would be redundant.

Alex's Caves (Unofficial Port) • Tremorsaurus • Forsaken • Gum Worm • Hullbreaker • Tremorzilla (onIy avaiIabIe and triggered with the /mbbbforceshowbossbars command)

Alex's Mobs (Unofficial Port) • Warped Mosco

Apotheosis • All Apothic Bosses (with boss bar colors that vary by tier)

Arthropod Phobia Expansions • Termite Tunneler Queen • Spider Snatcher • Spider Prowler • Spider Reaper • Solifuge Skulker • Centipede Evictor • Crab Constrictor • Arthropleura Abomination (if wild/untamed, boss bar disappears and will no longer appear again once tamed) • Wasp Nemesis • Spider Infestor • Spider Matriarch • Spider Moth • Scorpioid Bloodluster • Draconic Voidlasher

Battle Towers • Battle Tower Guardian

Born in Chaos • Spiders Mother • Glutton Fish • Dire Hound Leader • Nightmare Stalker • Krampus • Missionary • Lifestealer • Supreme Bonescaller • Sir Pumpkinhead

BossCraft Respawn: Unofficial Port • Fire Lord • Rogue Master • Spider Queen • Pharaoh • Grim Reaper • Megablock

BossCraft Respawn: Overlord • King Scorpion • Ice Devil • Overlord

Brazil Legends • Capelobo • Mapinguari • Mapinguary

Choup's Drakvyrn Mod • All Drakvyrn variants (if wild/untamed, boss bar disappears and will no longer appear again once tamed) • Drozen (if wild/untamed, boss bar disappears and will no longer appear again once tamed) • Drakthal (if wild/untamed, boss bar disappears and will no longer appear again once tamed)

Classic Battle Towers • Battle Tower Golem

Crimson Steve's Mutant Mobs • Stunt Skeleton • Chad Withered Boxer

Desert Tombs • Pharaoh

Discerning The Eldritch • Blood Matriarch

Dungeons and Taverns • Spider Queen • Freeze • Ancient Guardian • End Castle's Haunting

Dungeons Content • Corrupted Cauldron • Ancient Guardian • Redstone Golem • Redstone Monstrosity • Mushroom Monstrosity • Obsidian Monstrosity • Redstone Pigman Monstrosity • Tempest Golem • Arch-Illager

Effigy • Gargoyle

EX Pluralis • Super Crimson Bull • Evil Alex

Fishing Expansion • Elder Drowned

Friends & Foes • Wildfire

Frostiful • Frostologer

Fungal Infection: Spore • Proto Hivemind • Sieger • Howitzer • GazenBreacher • Hindenburg • Hohlfresser • Grakensenker • Stahlmorder • Leviathan

Galosphere • Berserker

Greek Fantasy • Arachne • Circe • Cretan Minotaur • Medusa

Ice and Fire (Community Edition) • Fire Dragon (if wild/untamed, disappears when asleep) • Ice Dragon (if wild/untamed, disappears when asleep) • Lightning Dragon (if wild/untamed, disappears when asleep) • Cyclops • Gorgon • Hydra

Iron's Spells 'n Spellbooks • Archevoker

Klsts' Monsters • Monstrous Spawner (+ advanced variant)

L_Ender's Cataclysm • Amethyst Crab • Coralssus • The Prowler • Ignited Revenant • Wadjet • Kobolediator • Aptrgangr • Clawdian • Ender Golem

Lands of Icaria • Captain Revenant • Arachne

Luminous: Overworld • Tree Ent • Hermit King • Mummy • Sea Viper • Yeti • Vile Gator • Phoenix • Bone Stalker • Witch Doctor • Cherry Tree Ent • GoldenHermit King • Red Mummy • CoralSea Viper • Arid Yeti • Frozen Vile Gator • Wind Phoenix • Bogged Bone Stalker • Woodland Witch Doctor

Luminous: Beasts • Tree Ent • Hermit King • Mummy • Sea Viper • Yeti • Vile Gator • Phoenix • Bone Stalker • Horseless Headsman • Witch Doctor • Crimson Spitter • PigIin Executioner • The Furnace • Cherry Tree Ent • Golden Hermit King • Red Mummy • Coral Sea Viper • Arid Yeti • Frozen Vile Gator • Windy Phoenix • Bogged Bone Stalker • The Scarecrow • Woodland Witch Doctor • Warped Spitter • Basalt Executioner • The Soul Furnace

Luminous: Nether • PigIin Executioner • Mushlin King • The Furnace • Basalt Executioner • Warped King • The Soul Furnace

Moar Bosses • All elemental bosses

Mobstein • Witherstein (phase 1)

MobZ • Boss Zombie • Boss Skeleton • King Charles • Big Boss • Pillager Boss

Monstrosteve • Monstrosteve

Mutant Monsters • Mutant Zombie • Mutant Skeleton • Mutant Creeper • Mutant Endeman

Myths & Legends • Possessed Armor Inquisitor

Occultism • Possessed Warden • Possessed Elder Guardian • Unbound Afrit • The Wild Hunt (in the style of an event, boss bar scales with the total amount of health of all skeletons initially present in the event) • Wild Trial (in the style of an event, boss bar scales with the total amount of health of all participating mobs initially present in the event) • Wild Raid (in the style of an event, boss bar scales with the total amount of health of all raiders initially present in the event)

Polar's Exploration Additions • Endermite Queen

Random Bosses • Random Bosses

Razor Tyrant: The Reign of Terror • Razor Tyrant

Royal Variations • Royal Enderman

Saint's Dragons • Raevyx (if wild/untamed, boss bar disappears and will no longer appear again once tamed) • Ignivorus (if wild/untamed, boss bar disappears and will no longer appear again once tamed)

Sensei Illager • Sensei

Tensura: Reincarnated • Orc Lord

The Ceilands • Castle Lord

The Undead Revamped • Clogger • The Heavy • The Pregnant • The Royal • The Horrors • The Dungeon

The Undergarden • Forgotten Guardian

TofuCraftReload • Tofu Gandlem

TOWERS OF CHAOS • Nether Obelisk

Trails of Forsaken Lands • Chilled Collector • Reaver & Illagockey • Mimiorin • Dracant • Vespa Milite (& Golem Guardian) • Scorpion Guardian • Abanoul

Useless Reptile • Lightning Chaser (if wild/untamed, boss bar disappears and will no longer appear again once tamed)

Vampirism • Vampire Baron

Wizard Tower • Wizard

YUNG's Better Desert Temples • Pharaoh

Zombie Nightmare Expansions • Brutaliser