Please, always keep a backup of your savegames!
To know where this comes from, please read this thread: https://projectpokemon.org/forums/showthread.php?46883-GEN-3-Mystery-Gift-Research
PC Version: https://github.com/projectpokemon/Gen3-WCTool/releases/
GC/Wii Homebrew: https://github.com/suloku/gba-link-cable-dumper/releases/
NDS Homebrew: https://github.com/suloku/savegame-manager/releases/
e-Reader savegames for Eon Ticket transfer (all regions) via Link Cable with r