4. This game is an RPG with a life/death cycle. The monster you train will eventually die and be reborn again.
There is also a day/night cycle. And an achievement system. A discipline system. A training system. All this on a PS1 game.
3. This game features not only one of the best soundtracks in the series, but of all games. The main character struggles with himself for most of the game, but he has to be a leader.
He slowly becomes infatuated with another party member. At first it seems like he doesn't care, but eventually he comes around.