http://www.pcgamer.com/atlus-brings-free-shin-megami-tensei-side-scroller-to-pc/

Finally, Shin Megami Tensei has come to the PC … is what I'd love to write, but Atlus' stellar JRPG series is still tied to consoles and handhelds. Though you wouldn't know it from Shin Megami Tensei: Synchronicity Prologue, which released on PC today. Synchronicity is a free side-scroller by Krobon Station, makers of Pharaoh Rebirth+, intended to drum up the upcoming release of Shin Megami Tensei: Deep Strange Journey on 3DS, a remake of 2009's Strange Journey. It started as a short gag in a trailer for Deep Strange Journey, but it's actually a legitimate game. 

Promotional or not, Synchronicity is a pretty fun side-scroller. It stars Jack Frost and Pyro Jack, two of the most iconic demons in the SMT series, and features many familiar systems like elemental weaknesses. It's also very Metroid, complete with keys to collect and square-based maps to explore. Fan favorite demons like Alice, the queen of the death arcana (and nobody is going to tell me otherwise), and old faces like Girimehkala also make an appearance.