Unlike a regular Frost and despite his appearance, King Frost is ruthless and his power unyielding. He is not friendly and likes to exercise his status as a king to even go so far as to consider his summoners as his subjects as well.
Profile
Shin Megami Tensei IMAGINE
King Frost can only be acquired through a triple fusion of three different Jack Frost variations. He regularly appears as an event boss during the Christmas period. His crown, padlock, and wand all appear as player equipment.
Shin Megami Tensei: Strange Journey
"The king of snow, ruling over an infinite number of Jack Frosts. He has the power to freeze the entire world, but his personality is actually very naive."
—Shin Megami Tensei: Strange Journey Compendium
King Frost can be only encountered using the Enemy Search feature of the Demonica, and is one of the special fusions in the game, consisting in Jack Frost, Black Frost and Frost Ace.
Devil Summoner: Soul Hackers
"Heeeeee! Hoooooooo! Hee! Ho! Hee! Ho! Hee-ho Hee-hoo! I'm the boss, King Frost! Of course I'm the boss! I'm the King! All I have to do is breathe and freeze everything! Hee-Ho! You want to be frozen, too? Ho-kay, I'll do it! Heeeeee! Hoooooo! Hee-ho!"
—King Frost, Devil Summoner: Soul Hackers
King Frost appears in the first Room of Trials at the Corridor of Time. Defeating him is necessary to obtain the Bronze Manji.
King Frost appears in an ice-based Fusion Spell in which he is summoned temporarily.
Persona 3 FES
"The king of snow, ruling over an infinite number of Jack Frosts. He has the power to freeze the entire world, but his personality is actually very naive."
—Persona 3 FES Compendium
King Frost appears in Persona 3 as a special Persona. In order to fuse him, the player has to obtain the "Sugar Key" item (a reference to Digital Devil Saga) by completing Elizabeth's request #22.
King Frost first appeared in Episode 12. Yu Narukami summoned him as one of his attempts to attack Shadow Mitsuo. King Frost was used to shoot a blast of Bufula at Shadow Mitsuo. Unfortunately, this attack was blocked and Yu was forced to use another persona. King Frost is also the Persona that represents the bond between Yu and Kanji.
DemiKids: Light & Dark
"King of the snowmen whose clothing is designed to maintain cold temperatures."
Known as King Icy', he rules over Frostville and the Ice Temple. In Dark Version he is taken hostage by the Imperium's Harborim, but is saved by Akira. King Icy is obtained by ranking up a Jack Frost ten times through fusing ten consecutive Jack Frosts together. Since ranking up is not available in Light Version, the only way for Jin to obtain a King Frost is through link trade. King Icy can perform the Ice combo Blizzard with J. Frost, which deals damage and freezes all foes for 15 MP. King Icy can also perform the Ice combo Freeze wave with Icy Ace, which deals damage and freezes all foes for 25 MP.
Digital Devil Saga
"This is the King's castle, HO. The King decides the HEE code. Those who disobey are sentenced to HEE HO death."
—King Frost before his boss battle
After Serph and company defeat Mick the Slug, King Frost takes the opportunity to reoccupy Coordinate 136 with his own demons. Upon reentering the castle, Serph encounters two Pyro Jacks fiddling away at a treasure chest. Having tried their luck, the Pyro Jacks turn to the party to find a suitable key within the castle promising that the treasure within is for Embryon to keep. It was, however, a lie.
After the party retrieves the correct key, the Pyro Jacks run off with the treasure to present it to their king. To get back their spoils, the party ventures to the top of the tower to find King Frost sitting on the platform above the bed in the Princess' Bedchamber. Declaring that all possessions belong to him, King Frost decides to smite the party for their insolence. After a harsh struggle combined with the forces of his minion Jack Frosts, the party defeats King Frost and obtains the Ice Crystal, which unlocks the King Mantra.
King Frost summons a more powerful variant of Jack Frost, created by apparently fusing two regular Jack Frosts.
Upon defeating him, players can obtain the Hee-Ho Karma ring in the sequel, which grants the wearer immunity to Ice-based attacks.
Devil Survivor 2
"The king of snow, ruling over an infinite number of Jack Frosts. He has the power to freeze the entire world, but his personality is actually very naive."
"I'm King Frost... the Tyrant! You're weak looking, ho! But I'll help you with my ice, ho!"
"Time to fuse, ho! Good timing! Fuse me with a skinny fellow so I can drop my belly, ho!"
Devil Survivor 2
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Gallery
King Frost as it appears in Persona 3 FES
King Frost as it appears in Persona 4 The Animation
King Frost as it appears in Devil Children Red/Black Book
King Frost as it appears in Shin Megami Tensei IMAGINE
King Frost first summoned in Persona 4 The Animation
King Frost as it appears in Devil Survivor 2
King Frost as it appears in Card Summoner
Trivia
His battle theme in Devil Summoner: Soul Hackers is a slightly updated version of Dr. Thrill's theme.
King Frost is one of the few demons who uses a design originating from DemiKids on another franchise, and seems to be the de-facto design for any time a game uses models, most likely owing to the simpler design compared to the original King Frost which is used in games that use sprites.
