Detailed information on all 27 bosses — HP, locations, respawn timers, and complete drop tables.

One of the first bosses players will encounter on Sailor Island. Jinwoo has 6M HP and drops Abyss Edge, Dark Ring, and Shadow Heart materials used for sword progression.

A mid-tier open-world boss on Sailor Island with 20M HP. Alucard drops the Soul Amulet accessory, the Casull weapon, and the Blood Ring.

An early-game open-world boss at Shibuya Station with 3.75M HP. Yuji drops Energy Core (25%), Flash Impact (9%), and Divergent Pulse (4%) — key crafting materials for early progression.

An early-to-mid boss at Shibuya Station with 4M HP. Gojo drops the Limitless Key (30%) needed to summon Strongest of Today, plus Void Fragment and Limitless Ring.

The strongest of the Shibuya Station trio with 5M HP. Sukuna drops the Malevolent Key (30%) needed to summon Strongest in History, plus Cursed Finger and Dismantle Fang.

The Boss Rush exclusive boss, encountered during the Boss Rush gamemode on Sailor Island. Escanor's HP scales with Boss Rush difficulty. Drops the Escanor weapon (5.74% chance, no pity), Sun Armor (0.5-1.5%), and The One title (0.85-1.75%). Boss Rush difficulties: Easy (DR 35% less effective), Medium (DR 70% less, lifesteal 50% less), Hard/Extreme (DR disabled, lifesteal disabled, iFrames 1.5s only).

A powerful mid-to-late boss at Hueco Mundo with 25M HP. Aizen drops the Mirage Pendant accessory (20%), Illusion Prism (8%), Reiatsu Core (3%), and the rare Hogyoku Fragment (1.2%).

A summonable boss on Boss Island requiring 1 Boss Key + 100K Cash + 175 Gems. Saber is one of the more accessible summonable bosses with a 2% chance to drop the Saber sword.

A summonable boss on Boss Island requiring 3 Boss Keys + 250K Cash + 400 Gems. Qin Shi drops Jade Tablet (6%) and Imperial Seal (2%).

A 65M HP summonable boss on Boss Island, requiring 5 Boss Keys + 350K Cash + 600 Gems. Ichigo drops Soul Fragment (6%), Spiritual Core (1.75%), and the rare Soul Flame (0.7%).

The dungeon boss encountered in the Cid Dungeon (Waves 5/10/15). Shadow's HP scales from 20M to 500M based on difficulty. Drops Umbral Capsule and Void Seed.

An event boss on Christmas Island with 12.5M HP and 5-minute cooldown. Drops Wyrm Band (25%), Black Frost (9%), and Silver Requiem (3.5%).

The hardest open-world boss with 250M HP, located on Valentine Island. Madoka guarantees a Heart drop (100%) and also drops Divine Fragment (6%) and Sacred Bow (4%). Requires a coordinated group.

A 300M+ HP endgame summonable boss on Boss Island, requiring 1 Divine Grail + 500K Cash + 500 Gems. Drops Throne Remnant (11.5%), Ancient Shard (4.5%), Golden Essence (1.5%), and Phantasm Core (0.5%).

A powerful summonable boss on Shinjuku Island (125M+ HP), summoned with a Limitless Key from Gojo. Drops Reversal Pulse (15%), Six Eye (6%), Blue Singularity (2%), and Infinity Essence (0.65%).

The hardest summonable boss on Shinjuku Island (150M+ HP), summoned with a Malevolent Key from Sukuna. Drops Awakened Cursed Finger (15%), Vessel Ring (6%), Malevolent Soul (2%), and Cursed Flesh (0.65%).

A summonable slime boss on Slime Island (200M+ HP), requiring 1 Slime Key. Drops Sage Pulse (13.5%) and Tempest Seal (5.5%).

A 350M+ HP endgame summonable boss on Academy Island, requiring 1 Calamity Seal. Anos drops Demonic Fragment (11.5%) and Demonic Shard (4.5%).

The ultimate dungeon boss in the Double Dungeon with 750M HP. Drops Monarch Core (6.75%), Monarch Essence (2.75%), Shadow Crystal, and the rare Kamish Dagger weapon.

The strongest summonable boss on Soul Society with 850M HP (Normal difficulty). Summoned via Chrysalis Sigils farmed from Quincy NPCs on Soul Society. Drops the Transcendent Being title (+72.5% DMG) — the best damage title in the game — along with Evolution Fragment, Transcendent Core, Divinity Essence, Fusion Ring, and the Manipulator Outfit accessory.

A powerful summonable boss on Judgement Island with 850M HP (Normal difficulty). Drops materials needed for the Yamato sword — Azure Heart (0.5%), Yamato Essence (2.5%), Frozen Will (4.25%), Silent Storm — plus the Blade Sovereign title (1%) and the Imperial Outfit accessory.

A summonable boss on Boss Island with 650M HP (Normal difficulty). Summoned via Tempest Relics + Cash + Gems at the Boss Summoner NPC. Normal: 1 Tempest Relic + 600K Cash + 600 Gems. Drops the Astral Empress title (+70% DMG), Aero Core, Gale Essence, and the Maiden Outfit accessory.

A powerful boss added in the Alter Update (March 16, 2026). Summoned on Boss Island using Dark Grails + Money + Gems. Three difficulty levels: Normal (1 Grail), Hard (2 Grails), Extreme (4 Grails). Must deal at least 10% of boss HP to receive rewards. Drops Corrupt Crown and Corruption materials for Saber Alter weapon crafting.

A summonable endgame boss on Boss Island, added in the Moon Update (March 31, 2026). Summoned at the Boss Summoner NPC using 1x Upper Seal + 700,000 Money + 700 Gems. Upper Seals drop from enemies on Shinjuku, Lawless, and Ninja Island. Drops materials needed for the Moon Slayer melee spec unlock, including the rare Moon Crest. Small buff applied on new servers (Alx, April 2, 2026: 'not a big buff as he doesn't need a big one'). Specific stat changes TBD pending full server rollout. Source: Discord #game-announcements (Alx, 2026-04-02) + Beebom/Roonby (2026-04-01).

A 2 billion HP open-world boss on Ninja Island, added in the Massive Update (March 25, 2026). Based on Madara Uchiha. Spawns automatically every 6 minutes at the far end of Ninja Island (opposite the teleport spawn point). Drops the Battlefield Warlord title (1.5%, 100-kill pity) — required for the Strongest Shinobi fighting style unlock chain. Level 12,000+ recommended. Source: allthings.how + progameguides.com (2026-03-27).

A 2 billion HP summonable boss on Lawless Island, added in the Massive Update (March 25, 2026). Summoned at the Atomic Boss Summoner NPC using Abyss Sigils (Normal=1, Medium=2, Hard=3, Extreme=4). Drops the S+ tier Atomic Outfit accessory (1.23%) and materials needed to purchase the Atomic Sword (Cid V2) from the Atomic Seller NPC. Abyss Sigils drop from Arena Fighter mobs on Lawless Island and Ninja mobs on Ninja Island. Level 12,000+ recommended. Source: allthings.how + beebom.com (2026-03-27).

A summonable endgame boss on Boss Island, added in the Ice Update (April 8, 2026). Summoned via the Boss Summoner NPC using Frost Relics + Money + Gems. Normal spawn: 1 Frost Relic + 750,000 Money + 750 Gems. Higher difficulties increase HP and drop rates. Drops materials needed for the Ice Queen sword crafting chain, including the rare Ice Core and Frost Empress Title. The Frost Empress Title (pity 155) is required to purchase the Ice Queen sword. Frost Relics also drop from ALL NPCs in game. Source: Beebom (2026-04-08) + Discord #update-logs (Alx, 2026-04-08, gold standard).