Chocobo Adapting/ development- perhaps have more than one chocobo and the more you use it in a certain terrain will eventually change its colour but also give you a benefit. for example if you run around a lot in a wet area your chocobo turns light blue, if you run in a rocky hilly area turns red, if you jump a lot it perhaps develops bigger wings that let you glide a little further. All this could tie into a sort of mini game/ secret area limitless potential for example if you develop a red and a blue mix it can run up Waterfalls.

A private Limit Break guage. we should each have a private Limit break gauge which takes (a long long time to charge) somewhat of way to help you kill things or Dungeon that you may find difficult like Extreme modes. They can make it cost Gil to charge the gauge or maybe take 12hours to charge a single gauge