A better tip:
Go to the save files data
copy and paste your Choco RPG somewhere else
then import your chocobo and send it back to it's world.
copy and paste your other Choco RPG to replace the one in the save files.
Repeat.

I'm sure all of you got this by now, but just wanted to make sure.

Like this you can have infinite items, gils by selling them, item ups to boost your characters.
The only thing that are not in that game are Magazines.
Yes, even items such as Edea's letter can be found.

The A item can be mostly ANY rare item in the game, most of them are Ups like
HP UP
STR UP
SPD UP
LUCK UP
Ect...