Ashtear

Not even just party upgrades, but fun stuff from the original that gets gated by side content, too. I'm a huge fan of blue magic in general, which meant I had to do a lot of the maps to get my Enemy Skills. Even someone like me that enjoyed the open world and the side content was very, very done with it by the last two regions.

The game does some seriously raw stuff with failed relationships that I still haven't entirely recovered from. I still strongly recommend it, though.

Lately I've been considering a replay as a liberal just to see all the internal commentary on it.