The developer and publisher of the post-apocalyptic role-playing series Shin Megami Tensei, Atlus, has released a free sidescrolling adventure after teasing the . Atlus announced the game, Shin Megami Tensei: Synchronicity Prologue, on its Japanese blog (via Gematsu) following a trailer last week for the 3DS game Shin Megami Tensei: Strange Journey Redux.