New DS content?

[Fynn]

I was wondering what the new content is. I beat the game without noticing any of the sort. People say something about a bestiary, yet I don't see one. Also there's this stuff about Onion Knight and new dungeons. How do I access this stuff?

[Crossblades]

http://forums.eyesonff.com/final-fantasy-iii/114786-anything-do.html

Plus, there are other quests where you get the Ultima Weapon after you send messages to NPCs