However, that exact title isn't a widely known official release. Based on the naming, you're likely referring to a (ROM hack or mod) of Dragon Ball Z: Budokai Tenkaichi 3 (PS2/Wii), possibly with crossover characters, a "Normal Down" gameplay tweak (lowered stats, no super armor, etc.), or a difficulty adjustment.
It looks like you're asking for a of a specific fan project or mod: Team Budokai Tenkaichi 3 Crossover - Normal Down... Team Budokai Tenkaichi 3 Crossover -Normal Down...