Bosses Wiki

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 (15 waves / 300s time limit / 1 Rush Key per entry / ≥10% HP required to receive loot) 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%). sailorpiecewiki /entries/boss-rush (2026-04-23) lists per-difficulty drop rates: Easy 0.6% / Medium 0.85% / Hard 1.25% / Extreme 1.85%. 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). Boss Rush Shop max permanent upgrade cost: 6,625 Rush Coins.

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%).

A new Sea 2 World Boss (Cosmic Garou original from One Punch Man). Spawns every 30 minutes (server time, only after previous instance is defeated) at the middle of Punch Island. NO pity system. Drops the Cosmic Being melee spec directly + Cosmic Being damage title (+95%). Team coordination required (40% NPC damage reduction). Adaptive system: every 25% HP triggers one of Harden (+10% DR), Rage (+25% player dmg), Accelerate (+25% movespeed), or Regenerate (+10% HP) — max 3 triggers per fight.

A new Sea 2 boss on Bizarre Island (DIO-inspired from JoJo's Bizarre Adventure Part 3 — The World Stand). Summon-based with 4 difficulties: Normal 5B HP (Medium/Hard/Extreme HP pending wiki confirmation). Summon cost = 1 Dominion Brand (Normal). Drops the Time Tyrant damage title (+92.5%). 35% NPC damage reduction. Full 4-difficulty drop matrix (sailorpiecewiki /entries/the-world-style 2026-04-23): Power Fragment 8.0%/9.0%/9.65%/11.5%, Time Remnant 2.75%/3.1%/3.5%/4.25%, World Outfit 0.65%/0.9%/1.0%/1.15%, World Core 0.60%/0.7%/0.8%/0.9%, Vampire Omen 0.25%/0.3%/0.4%/0.5%, Time Tyrant title 0.6%/0.8%/0.95%/1.2% (pity 175). Requires Primordial Bloodline + Time Tyrant title to access full questline.

A new Sea 2 Easter Event boss that drops the Ancient Mage damage title (+90%) plus crafting materials for the Great Mage sword. Also drops Ancient Fragments (3.41% — alternate path to Sea 2 unlock besides map farming). 35% NPC damage reduction. 4-difficulty summon costs (sailorpiecewiki /entries/great-mage-style 2026-04-23): Normal 1 Easter Key / Medium 2 / Hard 3 / Extreme 4. Ancient Mage title 4-difficulty drop rates: Normal 0.65% / Medium 0.85% / Hard 1% / Extreme 1.25% (pity 160).

A new Sea Creature (Sea Beast) introduced in Sea 2. Spawn requires 500k+ bounty + 200-600 studs from islands. Bounty affects spawn rate — higher Bounty = faster spawns (max Bounty: 50M post-Sea 2). Server cap: 1 Kraken + 1 Sea Serpent simultaneously. Drops materials for Dragon Goddess sword and Dragon Queen title (+97.5% damage). No pity — Luck builds recommended. Average per-kill yield (sailorpiecewiki /entries/bosses-guide 2026-04-23): ~15 Bloodline Stone + ~25 Clan Reroll.

A new Sea Creature (Sea Beast) introduced in Sea 2. Spawn requires 500k+ bounty + 200-600 studs from islands. Spawns scale with player Bounty (max: 50M post-Sea 2). Server cap: 1 Sea Serpent + 1 Kraken simultaneously. Shares drop pool with Kraken: Dragon Queen title and Dragon Goddess sword materials. No pity — high-Luck builds strongly recommended.

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') — exact post-buff stat values not publicly documented as of 2026-04-25. 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 (right of the hand statue, Ice Queen Seller NPC), added in the Ice Update (April 8, 2026). 4 difficulties — Normal 1.65B / Medium 5B / Hard 13.5B / Extreme 32.5B HP. Summon costs: Normal 1 Frost Relic + $750k + 750 Gems / Medium 2 Frost Relics + $1M + 1000 Gems / Hard 3 Frost Relics + $1.25M + 1250 Gems / Extreme 4 Frost Relics + $1M + 1000 Gems. Drops materials for the Ice Queen sword crafting chain and the Frost Empress Title (+87.5% Damage, pity 155 — required for 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) + sailorpiecewiki /entries/ice-queen (2026-04-23).