: Obelisk, Slifer, and Ra are typically unlocked via UMD recognition with Tag Force 1 and 2.
: Sets your currency to the maximum for buying packs.
These do not require external files and are entered directly through your controller or keyboard.
: You can download "100% Complete" save files from sites like GameFAQs and place them in your PSP/SAVEDATA folder to skip the grind entirely. If you'd like, I can help you find: The exact Game ID for your specific version (EU, US, or JP) Specific CWCheat code strings for DP or Card Unlocks A guide on how to import 100% save files safely 100% Working CWCheat Codes for EU Version - GameFAQs