Shin Megami Tensei
Man these games are great. An amalgamation of mythologies, hard as hell, and leaves none of its questions unasked. Also, better than Final Fantasy, I can only ask for that. It's these games that kicked forward my interest in mythology and the concept of chaos (the Chaos alignment helped that). Though I gotta say I've been getting my head wrapped up in understanding them, and I must confess that I may have taken some things too seriously, but I think I'm done gazing too deeply. The games are still utterly enjoyable to me, and that's all I ask (other than that last thing I said was all I asked for, but don't think too much of it).