Power of Chaos is a 2003 game with no online features. There is no ban risk. Unlock everything guilt-free and enjoy building absurd decks against Kaiba’s limited AI.

If a 100% save file claims to have 181 cards, that’s the legitimate maximum. If it has more (e.g., 190+), it’s a modded version that injects AI cards into your collection — these may crash the game when you try to build a deck with them.

If you own the original CD-ROM or a legitimate digital copy, modding your local save file is considered fair use for archival purposes.

Depending on which specific title you are playing ( Yugi the Destiny , Kaiba the Revenge , or Joey the Passion ), the "best" method varies. Below are the three most common ways to get all cards.