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All 45 bosses in Mortal Shell 2

Every boss the catalog holds, grouped by the region it stands in and ordered the way the route reaches them. 33 of the 45 resolve to a region, 7 are named with only a beacon or a room to go on, and the 5 endgame fights are held back behind their own heading.

How many bosses does Mortal Shell 2 have?

45, counting minibosses and the beacon fights the source files as bosses. Most of them are gating something rather than blocking something: a Shell, a Seal, a gate lever, a Tarstone. If you are stuck on where to go next, the boss you have not beaten is usually holding it — which is why the Drops column is the useful one here and not the location.

Regions are worked out rather than stated. The source gives a boss a location line and sometimes only a beacon name, so each fight is matched to a place the catalog holds and then walked up to the region that contains it. Where none of that lands, the fight is listed under Not placed yet with the line the source does give, rather than being put in the likelier of two halves of the game.

The fights we have written up10

10 of the 45 carry a full fight guide — how to reach the arena, how the fight is shaped, and the tactics that answer it. They sit on each boss's own page rather than at a second address, so the link below opens the record and the strategy together. The ones chosen are the fights that gate a Shell, a weapon or the upgrade system, plus the two early walls that stop the most first runs.

Disciple's Pass3

BossWhere it waitsDrops
Gloombound RitualistForlorn VillageSunken ground past the Village Outskirts beaconGloom
Tainted VestigeForlorn VillageHidden cave off the Disciple's GrottoGloom
Tar GolemForlorn VillageDisciple's GrottoVatra's Seal

Fainweald16

BossWhere it waitsDrops
Bloodcursed LithopodGloomshade GroveGloomshade Grove, FainwealdCitadel Gate Lever, Coins, Gloom
Circle of the Grasping RootSunken VillageRootwater Hollow, through the Seeping Mire beaconGloom, Coin
Gloombound LegionPrisoner's DomainCleanse the Hangman's Scaffold Beacon in the Prisoner's Domain GateGloom ×1,208
Great Arbiter of FleshWidow's OverlookWidow's OverlookGlimpse x1, Gloom, Arbiter's Prize
GrishaFlooded VillageFound deep inside the Flooded Village dungeon past the small arena.Gloom ×2,331, Synaptic Vessel, Grisha Remnant
Lucian, the Thirsting KnightThe Hidden Keep (Dungeon)The Hidden KeepSerpent Stone, Glimpse, 6500 Gloom
Magdalena the Lady of the WoodsSunken VillageSunken VillageGloom, Magdalena's Memento
Nameless CaptivePrisoner's DomainPrisoner's DomainCaptive's Scabstone, Gloom
Pale GrishaGrisha Hunting GroundsFound in the Grisha Hunting GroundsRevered Gland, Grisha Remnant, Gloom ×7,012
Rabid Grisha PackHolding CellsFound at the bottom of the Holding Cells dungeonGrisha Remnant, Inflamed Clawstone, Gloom ×1,132
Tarblighted StonerSanguine Caverns (Gate)Sanguine CavernsTarred Fragment, Gloom
The Lost ChildSanguine Caverns (Gate)Sanguine Caverns (Gate)Lost Clotstone, Gloom
The Wandering ShepherdSunken VillageFarm compound across the bridge from the Sunken Village beaconTarblighted Trophy, Gloom
The WardenCitadel of PenanceCitadel Of PenanceGloom, access to claim Eredrim as a shell
Tishina's ConfessorCentral SewersFound at the end of Slumwater Drain in the Prisoners' Domain region.Confessor's Keepsake, Gloom ×5,664
Vrannic the Grand IllusionistHall of IllusionsHall of Illusions, through the Mushroom Village Gate beaconVolatile Fragment, Glimpse, Gloom

Ruins of Mammon14

BossWhere it waitsDrops
Caged GrishaConquered templeCleanse the Winterglass Lake Beacon in the Conquered TempleGrisha Remnant, Fusillade Stone, Coin ×1000, Gloom ×10,132
Droeg, the ConquererConquered templeConquered TempleConqueror's Reward, Gloom
Gloombound WraithForbidden ArchivesForbidden ArchivesGlimpse, x2, Gloom, Curseblood Stone
HexapodWithered ShoalsWithered ShoalsHexapod Core, Gloom
Infested MinerBurrowkin DwellingBurrowkin Dwelling, Ruins of MammonGlimpse, Ventrium, Laterite, Dorsalite, Wretchcaller's Stone, Coins, Gloom
Isaac, The Scholar-PrinceFaded CitadelAshen SanctumScholar's Wormstone, Gloom
Prophet of Profane InfinitiesObsidianite MinesObsidianite MinesObsidian Hammer, Paradoxical Scripture, Coins, Gloom
Sariel, the EndlessChamber of BecomingInitially found on the platform north of the Chamber of Becoming and moves inside the chamber during 2nd phase.Gloom ×3,500, Glimpse, Clockwork Scythe, Sariel the Endless
Sester SecundusRevenant GravesSester's Censer, Gloom
Solnir, the Gloom SeekerFaded CitadelCleanse the Faded Citadel Gate BeaconGlimpse, Solnir Shard, Gloom ×13,885
Strange GrishaWithered ShoalsFound in the Withered ShoalsGrisha Remnant, Strange Remnant, Gloom ×1,835
Subjugated GuardianSentry's GraveSentry's GraveBallistazooka, Coins, Gloom
Urrig, the ExecutionerConquered templeFound in the Conquered TempleWarden's Stone, Gloom ×6,115
Vellen, High Lord of MammonRoyal Crypt of MammonRoyal Crypt of MammonGlimpse, Gloom

Not placed yet7

For these the source names a beacon or a room rather than an area, and no page here yet says which region that beacon stands in. The fight, the line and the drops are all recorded; only the grouping is missing.

BossWhat the source saysDrops
Bor, the Deluded MonarchCleanse the Abbey Entrance BeaconGlimpse, Monarch's Vestige, Gloom ×9,241
Servants of the Scholar PrinceCleanse the Citadel Atrium BeaconGloom ×1,579
Starved HarridanFound south of the Castigator's Keep BeaconVoltaic Essence, Voltaic Amber, Gloom ×15,165
Stray SestersCleanse the Sester's Gate BeaconBlack Needle, Sester's Crest, Gloom ×6,890
Twin SestersSester's BastionBlack Needle, Sester's Crest, Gloom
Viletongue BatushkaCleanse the Castigator's Keep BeaconGlimpse, Sage's Gate Lever, Viletongue Hedron
Vrago, Solikar ChampionAbandoned ShrineVoltaic Crown, Gloom

The endgame fights5

Endgame. These are the fights the game holds back until every gate is cleared. Naming them names the last hours of the story, so nothing above this heading refers to them and nothing below is needed to finish anything else.

BossWhere it waits
Malborn OffspringendgameThe tower it patrols, beneath Marrow Keep
Orrem, the Discarded GolemendgameBeneath Marrow Keep, guarding one of the three infection points
The Foul PassengerendgamePulled out of Zmey, the Unbidden
The MonolithendgameBeneath Marrow Keep, guarding one of the three infection points
Zmey, the UnbiddenendgameBeneath Marrow Keep, once all three branches are severed