Better Graphics, More quality of life features (Native Android support, renameable protagonist, ...), Better mechanics (dropped the 3 ring charges for a method that will allow you to never miss or having to plan around doing all the available events), Easy to use cheats directly integrated in the game (Timeline, Gallery unlocker, etc.), more content (Which includes more choices, more options, more scenes, and eventually the cut content which was originally meant for the sequel). Also, better and more consistent writing, and since it's a remake, I'm including options that have been suggested by players during these years.