Stay safe and support official releases when possible.
What some communities refer to as "Budokai Tenkaichi 4" is typically a fan-made mod or ROM hack — usually based on Budokai Tenkaichi 3 with modified characters, movesets, and rosters. These are not official games. descargar dragon ball z en budokai tenkaichi 4 psp iso link
I understand you're looking for a game called "Dragon Ball Z: Budokai Tenkaichi 4" for the PSP. However, I need to provide some important clarifications before proceeding. First: There is no official "Dragon Ball Z: Budokai Tenkaichi 4" released by Bandai Namco for any platform. The last main entry in the Budokai Tenkaichi series was Budokai Tenkaichi 3 (also known as Sparking! Meteor in Japan) for PS2 and Wii. Stay safe and support official releases when possible