Star Ocean
This is the first Star Ocean game I tried, and it certainly is fun. Everything about the gameplay itself is pretty good: graphics, music, sound effect, voice acting (Japanese ver.), delivery and development of story, etc. The only thing I don't like so much about this game is the battle trophy and its related achievements. There are I believe a total of 900 different battle trophies you may earn throughout the gameplay, and most of them are very repetitive and tedious (like win a battle with 1HP/2HP/3HP/4HP/5HP left, in which the hard part is not about winning the battle, instead it's about getting exactly 5HP left for the specific character). In order to earn a full achievement list for this game, you'll have to earn every single one of the trophies. So if you are a perfectionist about achievements, be prepared to spend hours of tedious grinding if you decide to add this game to your collection.