Connect a PSP with Yu-Gi-Oh! Gx Tag Force 2 to your PlayStation2. Load the game on the PSP, then select the "Database" option, then then "USB Connect" option. On the PlayStation2, load the game, then select the "Database" option, then the "USB Connect" option. You will get 10,000 DP and three new cards. Note: This can only be done once per saved game file.