I agree. There should be at least ONE chocobo . . . but I don't care so much about whether I can ride it. Maybe a Moomba too . . . and a Cactuar . . . and a PuPu . . . and an Onion Knight . . . okay, I've gone too far.

Anyway, Hollow Bastion/Radiant Garden is the Final Fantasy pure world. Merlin, Scrooge and Donald's nephews are just guests. If they ever did an Radiant Garden prequel. You'd see the residents are nothing but Final Fantasy characters . . . and the few scattered NPCs.

I started writing my own prequel to the Radiant Garden not long ago. However, I've writer's block.
What I have so far is that Ansem didn't believe in war but Squall was afraid of outsiders and requested a defense force be formed. So, Cloud, Sephiroth and a few others (including Zack) became SOLDIERs to safeguard the Radiant Garden. Ansem suggested that Squall be the captain and did not allow him to refuse. It is only because Squall's fear paralyzed him during the chaos of impending darkness that Squall took the name Leon and that being a part of SOLDIER was removed from his history.

I'm not very good at writing fanfictions. I always screw everything up.