This game is in a tie with Shin Megami Tensei III: Nocturne as my favorite game of all time. Everything about this game is great: The story, characters, gameplay, visual presentation, and soundtrack are phenomenal and really stand out in the Sega Genesis library. Phantasy Star IV masterfully ties in story elements from the previous three games and provides an incredible ending for the ongoing story in the series. You'll find adventure, fantasy, sci-fi, comedy, tragedy, and horror in this story and that is one of how the Phantasy Star series seemed to be ahead of its time, mixing in elements of different genres into an RPG and having them all fit very well. The combat system is also one of my favorites in a turn-based RPG, which includes combination attacks and a macro system where you save a set of actions for each character in your party for convenient access when encountering different kinds of enemy parties to target their weaknesses or to protect your party from their attacks. I really can't praise this game enough, it's one of the best RPGs of its era and still stands strong today.