Since this is a fan mod, check:
Why is it still "Beta"?
While BETA 3 did not add entirely new character models from scratch (due to PS2 hardware limits), it unlocked characters that were previously hidden or NPC-only. Chuchoman enabled: DBZ Budokai Tenkaichi 3 Version Latino BETA 3 By Chuchoman
Most mods like this (Dragon Arena, all characters, all stages). If not: Since this is a fan mod, check: Why is it still "Beta"