It looks like you're looking for a specific game mod!
The "TTT Mod" could be a fan-made modification for a game, but I couldn't find any information on a specific "TTT Mod" for a DBZ game. dragon ball legends ppsspp dbz ttt mod iso v3 portable
If you're looking for a Dragon Ball game on PSP, you might be thinking of Dragon Ball Z: Shin Budokai or other DBZ games on the PSP. It looks like you're looking for a specific game mod