I would dare to call it a hidden gem for the GBA. Wasn't released outside JP, but there is a decent full fan translation so you can enjoy it. It's a pretty solid JRPG with a curious way to manage magic (You need to craft magic stones) and the story is quite decent.
The world has a lot of detail in its story and you can arrive the end in so many ways, though that's a problem sometimes, when you can't think of what to do next.