NOTE: While the mod specifically runs on the (Neo)Forge modloader(s), it also includes added support for Fabric mods with the help of the Sinytra Connector mod. The lists provided below will indicate when a mod this mod supports necessitates it.
This mod serves as an addon to any mod featuring conspicuously resilient foes that don't quite qualify as true bosses and thus lack boss bars of their own, and does basically what the title of the mod says, by granting them their very own boss bars that track their health (like any other boss should)! This also includes vanilla's Elder Guardian and Warden. Additionally, true bosses that for whatever reason also lack a boss bar of their own have also been granted one to finally bequeath them that more appropriate and clear facade to their boss status that they so deserve.
It is also worth noting that the boss bars added by this mod do not necessarily work the same way as regular boss bars do, as they won't actually appear right off the bat as when any of these mini-bosses spawn. Rather, the mini-bosses have to receive at least a single strike of damage from a player in order for the bars to show up. Should the player stray off into the distance at a minimum of 60 blocks away from a mini-boss, their health bar will then vanish and require another blow of damage in order for them to reappear once more. These measures serve to prevent the redundancy of boss bars on a player's screen from enemies they aren't anywhere near inclined to provoking, thus rendering the bars obsolete by default.
You may also run the command /mbbbforceshowbossbars to toggle the bars on by demand.
You can disable boss bars from showing up for certain bosses through datapacks and giving them the tag #minibossbossbars:boss_exception. For bosses that exist through datapacks (like Ultris or Vanilla Mob Minibosses), instead run the command /tag @e[whatever goes in here] add minibossbossbars.boss_exception through a ticking function in a datapack. As to find out whatever goes between those square brackets, feel free to pry open the mod with WinRAR, navigate to data > miniboss_boss_bars > functions and scour through whichever function has their designated mod names to look for the desired boss.
However, if you are unable to do any of the above on your own, you may instead use the configuration datapack for the mod with its own set of instructions on how to utilize it: https://modrinth.com/datapack/mini-boss-boss-bars-configuration-datapack
The mod doesn't mandate the installation of every listed mod within each version simultaneously; rather, it adjusts to accommodate the ones that are currently installed.
The lists shown below detail what mods and their respective bosses are supported by this mod.
1.20.1
Abominations Infection • Parasite Mother • Flugzeug • Teufelskerl • Versuken • Keeper
Alex's Caves • Forsaken • Hullbreaker
Alex's Mobs • Warped Mosco
Aquamirae • Eel • Mother of the Maze
Arthropod Phobia Expansions • Termite Tunneler Queen • Spider Snatcher • Spider Prowler • Spider Reaper • Solifuge Skulker • Centipede Evictor • Crab Constrictor • Spider Moth • Scorpioid Bloodluster • Draconic Voidlasher
Battle Towers • Battle Tower Guardian
Born in Chaos • Spiders Mother • Glutton Fish • Dire Hound Leader • Nightmare Stalker • 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
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)
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
Crimson Steve's Mutant Mobs • Stunt Skeleton
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 • Heavy Guling Sentinel
Faded Conquest II • Aero Guardian
Friends & Foes • Wildfire
From The Shadows Reborn • Nehemoth • Bulldrogioth
Frostiful (Sinytra Connector required) • Frostologer
Fungal Infection: Spore • Sieger • Howitzer • GazenBreacher • Hindenburg
Galosphere • Berserker
Ice and Fire • 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
Iron's Spells 'n Spellbooks • Apothecarist • Pyromancer • Priest • Archevoker • Cryomancer
Knighy's Mystical Creatures • Super Spook (if wild/untamed, boss bar disappears and will no longer appear again once tamed)
L_Ender's Cataclysm • Amethyst Crab • Coral Golem • Coralssus • The Prowler • Ignited Revenant • Ignited Berserker • Wadjet • Kobolediator • Aptrgangr • Ender Golem
Land of Goblins • Creeptus • Shiny Undead • Crabtilus • Wither Fungus
Legendary Monsters • Overgrown Colossus • Frostbitten Golem • Skeletosaurus • Warped Fungussus • Lava Eater • Withered Abomination • Shulker Mimic • Endersent • Cloud Golem • Ancient Guardian • Possessed Paladin • Dune Sentinel
Luminous • Tree Ent • Hermit King • Mummy • Sea Viper • Yeti • Vile Gator • Phoenix • Bone Stalker
Luminous: Beasts • Tree Ent • Hermit King • Mummy • Sea Viper • Yeti • Vile Gator • Phoenix • Bone Stalker • Crimson Spitter • PigIin Executioner • Cherry Tree Ent • Golden Hermit King • Red Mummy • Coral Sea Viper • Arid Yeti • Frozen Vile Gator • Windy Phoenix • Bogged Bone Stalker • Warped Spitter • Basalt Executioner
Luminous: Nether • Piglin Executioner • Mushlin Spitter • The Furnace
LUNACY: The World of RPG • Ender Monstrosity
Manic • Paracusia
Mofu's Broken Constellations • Eye Guardian Golem
Mokels RPG • Elemental • Tainted Flame • Guardian of the First Flame
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
Paranormal Pleistocene • Necrosloth
Pigzilla • Pigzilla
Plenty of Golems • Guardian of the Deep
Printa's Arsenal • Soul Knight
Queen Bee • Queen Bee
Rats • Rat King
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
The Awakening of the Elder Souls • The Guardian of the Eclipse
The Cardinal Sins • Stone Warrior • Drakara, Eternal Mourner • Cursed Knight
The Conjurer • Conjurer
The Farlanders • Titan
The John Mod Reborn • Mega John
The Orcs! • Orc Boss
The Quackening • Axethrower
The Stellar Conquest • Mekkron
THE UNDEAD REVAMPED • Clogger • The Heavy • The Pregnant • The Royal
The Undergarden • Forgotten Guardian
TofuCraftReload • Tofu Gandlem
TOWERS OF CHAOS • Nether Obelisk
Ultris: Boss Expansion • Illusioner
Under the Moon • Wendigo
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
Wizard Tower • Wizard
YUNG's Better Desert Temples • Pharaoh