Shin Megami Tensei: Synchronicity Prologue

Shin Megami Tensei: Synchronicity Prologue is a bonus game released to promote Shin Megami Tensei: Deep Strange Journey (AKA Strange Journey Redux). This exploring/platforming 2D action game features Jack Frost, a character familiar to fans of Shin Megami Tensei and of Atlus games.

Taking place shortly before the events of Shin Megami Tensei: Strange Journey, Jack Frost is synchronized with the mind of a human in order to traverse and fight demon hordes. He rescues the non-synchronized Jack o' Lantern after he was frozen by Black Frost, who decimated all the Jacks that previously attempted an assault. They meet a small creature who names himself J-kun.