How do you download all characters of naruto shippuden kizuna drive psp?

To download all characters of Naruto Shippuden: Kizuna Drive for PSP, you would typically need to use a ROM or ISO file of the game, which can be found on various gaming websites. However, ensure that you legally own the game before downloading any files. Additionally, using an emulator on your PC or mobile device can allow you to play the game and access its content. Always be cautious of copyright laws and the legality of downloading game files.