Once unlocked, you will have 3 copies of all 771 cards. Here are three top-tier deck archetypes you can now build instantly:

If you do not want to alter your Windows Registry, you can download or swap a pre-saved data file that already holds a 100% completion status. Step-by-Step File Swap

Always run the game as an administrator.

If the game crashes upon opening Deck Construction, delete the system.dat file in your common directory, re-run the registry file, and open the game again. To help tailor this guide further, let me know: What version of Windows are you currently using?

Right-click the .exe > Properties > Compatibility > Run this program as an administrator .

can be a tedious grind, but there are proven methods to bypass the hours of dueling and instantly access the full library of . The Common Method: File Swapping

Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\KONAMI\Yu-Gi-Oh! Power Of Chaos\system] "flg"=hex:01,00,00,00 Use code with caution. Click . Set "Save as type" to All Files ( . ) . Name the file unlock.reg and save it to your desktop. Option B: Download a Save File Pack

Drop the downloaded system.dat file directly into that same folder.

The flcrc key contains hex data representing your card progress; experts often share specific hex strings that correspond to a 100% unlock.

To unlock all 771 cards in Yu-Gi-Oh! Power of Chaos: Joey the Passion

Look for a folder named Common . If it doesn't exist, create it.