King Slime

The King Slime was just an ordinary Slime that had come in contact with a giant potion, which caused it to grow larger than any ordinary slime. Based on JM From tha Streetz's quest line, the potion was developed by the magician Lakelis, who accidentally spilled it into Kerning City's sewers, causing it to contact with a green slime. The same situation also happened later with Dyle.

First Time Together

King Slime (Boss)
1 (100%)																				1 (100%)																				1 (100%)																				1 (100%)																				1 (100%)
Level		70 - 180			HP		Varying			MP		Varying			EXP			0
Attack		Varying			Defense Rate		PDR: Varying  % MDR: Varying  %			Speed		-20			Additional Points			None
Elements
Fire			Resistant							Ice			Resistant
Poison			Neutral							Lightning			Resistant
Holy			Resistant							Dark			Resistant
Physical			Neutral							Undead?			No
Other
Category			Enchanted
Equipment Drops			None
Usable Drops			None
Set-up Drops			None
Etc. Drops			None
Quest Drops			None
Locations			First Time Together <Final Stage>

Mu Lung Dojo

King Slime (Boss)
1 (100%)																				1 (100%)																				1 (100%)																				1 (100%)																				1 (100%)
Level		110			HP		12,342,000			MP		3,000			EXP			0
Attack		1,560			Defense Rate		PDR: 50% MDR: 50%			Speed		-20			Additional Points			Ambition EXP: 5 Willpower EXP: 5
Elements
Fire			Neutral							Ice			Neutral
Poison			Neutral							Lightning			Neutral
Holy			Neutral							Dark			Neutral
Physical			Neutral							Undead?			No
Other
Category			Enchanted
Equipment Drops			None
Usable Drops			None
Set-up Drops			None
Etc. Drops			None
Quest Drops			None
Locations			Mu Lung Dojo - Floor 6

Tower of Oz

World Archive

“Found on the 6th Floor of the Tower of Oz. The same species can still be found in present-day Maple World. It's surprising that this species has existed unchanged for so long.
It shares similar traits with the current King Slime, but I heard an interesting story from Alicia, the master of the tower.
According to her, a King Slime is simply a mass formed by slimes clumping together. This would surely come as a shock to slime scholars.”

― Chronicler Ritt

King Slime
1 (100%)																				1 (100%)																				1 (100%)																				1 (100%)																				1 (100%)
Level		114			HP		1,005,255			MP		3,000			EXP			1,435
Attack		2,860			Defense Rate		PDR: 30% MDR: 30%			Speed		-20			Additional Points			None
Elements
Fire			Resistant							Ice			Resistant
Poison			Neutral							Lightning			Resistant
Holy			Resistant							Dark			Resistant
Physical			Neutral							Undead?			No
Other
Category			Mammal
Equipment Drops			None
Usable Drops			None
Set-up Drops			None
Etc. Drops			None
Quest Drops			None
Locations			Undersea 6F

Server Naming Difference

Server	Language	Name	Meaning
GMS	English	King Slime