"A "shaved ice" version of Jack Frost created by the genius thaumoscientist Dr. Thrill after he moved to Japan. He absorbed Japanese pop culture and took a liking to hero groups and shaved ice. It is unknown whether he actually tastes like melon."
—Soul Hackers 3DS Compendium
By accepting the request from Dr. Thrill at the Pet Shop asking for a Persephone, the Protagonist will receive Melon Frost.
DemiKids Light/Dark Version
"Sweet, melon-flavored snowman. Close friends with Icyberry and Icylemon"
Known as Icymelon. he has the power IceBoost, which strengthens Ice based attacks.
Devil Survivor 2: Record Breaker
One of the Jack Frosts that must be escorted in a sidequest that unlocks the Frost Five. He transforms into Melon Frost after it picks up the Melon Syrup App on the battlefield.