A long time ago, Ficedula created a save editor for the FFVII pocketstation minigame 'Chocobo World'. The download location has been dead for quite a while, but I've managed to find a copy and mirror it on my own domain.
The file is located at
http://www.breck-mckye.com/final-fantasy-modding/Ficedula-Mirror/chole100.zipThe .zip file contains a Windows binary and documentation in the form of a readme file.