Growlanser IV is really great. I remember when I first got it I had low expectations since I didn't know much about it. I sort of expected a short run-of-the-mill JRPG with a basic story, a weird art style, and a somewhat unique battle system going off of the first half hour or so. It then turned out to be a really deep and engaging game, especially with how organic optional events are.
I only really noticed at first because I had lost my 35 or so hour save, and so in my haste to get to the point where I had been I either missed some events or somehow got different ones. It was really cool, but at the same time I felt sort of bad because I sort of shrugged off some characters.
My only complaint with the game is the music, which while actually being pretty damn good sounds low quality, especially when compared to the PS2 version.