How to Get the Sacred Beast in "Yu-Gi-Oh! GX Duel Academy"by Alex Ramirez ; Updated September 22, 2017
"Yu-Gi-Oh! GX Duel Academy" is a role-playing card game for the Game Boy Advance where players attend the Duel Academy, learn how to play the game and collect some of the game's rarest cards. One of the strongest summoning combinations is in the cards "Sacred Beast" and "Uria, Lord of Searing Flames." The two form a powerful ritual monster that can defeat nearly any monster in the game; however, the only way to unlock the cards is by using the game's cheat code system.
Load your saved game or create a new game in "Yu-Gi-Oh! GX Duel Academy" for the GBA. When the game loads, you will be in your dorm room.
Go to the "Card Shop" from the game's central map. The shop is located inside of the Duel Academy.
Press the "A" button on "Enter Code." A window will appear allowing you input numerical values.
Enter "06007213" without the quotation marks.
Press the "Start" button to enter the code and receive the cards "Sacred Beast" and "Uria, Lord of Searing Flames."