The closest original PSP games to Kakarot are:

When the file finally landed, Leo moved the .iso into his game folder and tapped the gold PPSSPP icon. The screen went black. He held his breath.

: The Z-Warriors travel to Planet Namek to use its Dragon Balls. Goku eventually achieves the legendary Super Saiyan transformation to defeat the galactic tyrant Frieza. The Android & Cell Sagas

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