MapleStory Classic World bosses: where they spawn, HP, EXP

The short answer

The Public Release client has 8 bosses, from Mano at level 20 to Crimson Balrog at 100. Shade is new. 6 of them have a spawn point on a timer; King Slime and Crimson Balrog have none. Every boss Closed Online Test 2 had is still in the client.

8: bosses in the client
1: new in the release
7: changed by it

Every boss, by level

Built from monsters.json, maps.json, patch_notes.json, data/cot2/, accepted drop reports. Nothing on this page is written from memory, and where a number comes from somewhere other than the client’s own files it says so beside itself.

Boss	Lv	HP	EXP	Spawns on	Respawn	Weak to	Sure hit
Mano	20	7,420	148	Thicket Around the Beach III	60 minutes	-	44
King Slime	32	16,820	2,400	1st Accompaniment <Last Stage>	none	-	37
Mushmom	40	34,440	340	Someone Else's House	60 minutes	Fire	95
Shadenew	48	47,000	488	Cabin of the Forsaken	60 minutes	Holy	114
Zombie Mushmom	55	66,640	668	The Grave of Mushmom	60 minutes	Holy	120
Rotten Mushmom	60	86,400	844	Someone Else's Grave	60 minutes	Fire and Holy	126
Jr. Balrog	80	325,400	2,188	The Cursed Sanctuary	3 hours	Holy	157
Crimson Balrog	100	741,240	6,000	no spawn map	-	Holy	182

Respawn is the spawn point’s own timer in the client (its mob time); how the server runs it is not in the files. A sure hit is the accuracy at which the client’s hit test lands every swing for a character of the boss’s level, and more is needed below it. The changelog has every monster the release changed.

Each boss

ManoLv 20 · 7,420 HP · 148 EXP

Spawns:: Thicket Around the Beach III, one spawn point on a 60-minute timer
Takes:: no element it is weak or strong against. Avoid 13, so 44 accuracy hits every time at level 20.
Casts:: Slow (5 s, every 60 s).
Confirmed drops:: none confirmed yet. Drop tables are the server’s, so this fills in as players report them. Report one
In the Public Release:: AVOID 9 to 13, Spawn maps 3 to 1.

King SlimeLv 32 · 16,820 HP · 2,400 EXP

Spawns:: 1st Accompaniment <Last Stage>, no respawn timer in the client
Takes:: strong against Ice, Fire, Lightning and Holy. Avoid 11, so 37 accuracy hits every time at level 32.
On death:: splits into 11 Slime.
Confirmed drops:: none confirmed yet. Drop tables are the server’s, so this fills in as players report them. Report one
In the Public Release:: EXP 248 to 2,400, P.ATK 391 to 288, M.ATK 391 to 288.

MushmomLv 40 · 34,440 HP · 340 EXP

Spawns:: Someone Else's House, one spawn point on a 60-minute timer
Takes:: weak to Fire. Avoid 29, so 95 accuracy hits every time at level 40.
Confirmed drops:: none confirmed yet. Drop tables are the server’s, so this fills in as players report them. Report one
In the Public Release:: EXP 376 to 340, AVOID 24 to 29, Elements none to weak to Fire.

ShadeLv 48 · 47,000 HP · 488 EXP

Spawns:: Cabin of the Forsaken, one spawn point on a 60-minute timer
Takes:: weak to Holy, strong against Poison; undead. Avoid 35, so 114 accuracy hits every time at level 48.
Casts:: Seal (3 s, every 120 s), Darkness (6 s, every 60 s) and Curse (120 s, every 35 s).
Confirmed drops:: none confirmed yet. Drop tables are the server’s, so this fills in as players report them. Report one
In the Public Release:: new; Closed Online Test 2 did not have it.

Zombie MushmomLv 55 · 66,640 HP · 668 EXP

Spawns:: The Grave of Mushmom, one spawn point on a 60-minute timer
Takes:: weak to Holy; undead. Avoid 37, so 120 accuracy hits every time at level 55.
Confirmed drops:: none confirmed yet. Drop tables are the server’s, so this fills in as players report them. Report one
In the Public Release:: Level 50 to 55, HP 53,640 to 66,640, EXP 568 to 668, P.ATK 642 to 697, M.ATK 706 to 766, ACC 141 to 146, AVOID 30 to 37, KB 3,750 to 4,250, Spawn maps 2 to 1.

Rotten MushmomLv 60 · 86,400 HP · 844 EXP

Spawns:: Someone Else's Grave (the release leaves the name blank; this is the CoT2 one), one spawn point on a 60-minute timer
Takes:: weak to Fire and Holy, strong against Poison; undead. Avoid 39, so 126 accuracy hits every time at level 60.
Confirmed drops:: none confirmed yet. Drop tables are the server’s, so this fills in as players report them. Report one
In the Public Release:: EXP 852 to 844, AVOID 34 to 39, Spawn maps 2 to 1.

Jr. BalrogLv 80 · 325,400 HP · 2,188 EXP

Spawns:: The Cursed Sanctuary, one spawn point on a 3-hour timer
Takes:: weak to Holy, immune to Poison. Avoid 49, so 157 accuracy hits every time at level 80.
Confirmed drops:: none confirmed yet. Drop tables are the server’s, so this fills in as players report them. Report one
In the Public Release:: EXP 1,612 to 2,188, AVOID 43 to 49.

Crimson BalrogLv 100 · 741,240 HP · 6,000 EXP

Spawns:: no map in the Public Release client spawns it.
Takes:: weak to Holy, immune to Poison. Avoid 57, so 182 accuracy hits every time at level 100.
Confirmed drops:: none confirmed yet. Drop tables are the server’s, so this fills in as players report them. Report one
In the Public Release:: EXP 2,652 to 6,000, AVOID 52 to 57.

Bosses only Closed Online Test 2 had

None. Every boss Closed Online Test 2 had is in the Public Release client too. What the release took away is 4 of their spawn points, on maps it does not have, which the cards above mark CoT2: From Closed Online Test 2 (Beta 2). Not in the Public Release; kept here as a record..

Questions

How many bosses are in MapleStory Classic World?

8 in the Public Release client, by its own boss flag: Mano (level 20), King Slime (level 32), Mushmom (level 40), Shade (level 48), Zombie Mushmom (level 55), Rotten Mushmom (level 60), Jr. Balrog (level 80) and Crimson Balrog (level 100). Every boss Closed Online Test 2 had is still in it.

Which bosses are new in the Public Release?

Shade: the release diff lists it as added, and Closed Online Test 2 had no such monster.

Where is Shade?

Shade spawns in Cabin of the Forsaken, where its spawn point has a 60-minute respawn timer. It is level 48 with 47,000 HP and gives 488 EXP, and it is weak to Holy.

How often does Jr. Balrog respawn?

Its spawn point in The Cursed Sanctuary has a 3-hour respawn timer in the client. That is the map’s own timer; how the server runs it is not in the files.

Did the Public Release change boss EXP?

Yes, for 6 of them: King Slime 248 to 2,400, Mushmom 376 to 340, Zombie Mushmom 568 to 668, Rotten Mushmom 852 to 844, Jr. Balrog 1,612 to 2,188 and Crimson Balrog 2,652 to 6,000, Closed Online Test 2 to the Public Release.

Where to read on

What the Public Release added has Shade’s story and the way to its cabin. Nexon’s Founder’s Access notes name five of these as the bosses of Victoria Island. The monster book has all 92 monsters the release carries.