The most well-known version that fits your search is the . Think of this as a complete conversion mod. It's not a new game, but rather a heavily modified version of Tenkaichi Tag Team that is designed to "look and feel like Dragon Ball Z Kakarot". This mod is distributed as an ISO file (around 1.3 GB), the standard format for PSP games that the PPSSPP emulator can read.
If your heart is set on using the PPSSPP emulator, you can't play the real Kakarot , but you can play that transform existing PSP Dragon Ball games to look and feel like Kakarot . dragon ball z kakarot for android ppsspp iso do exclusive