Dragon Ball Z: Budokai Tenkaichi 2
The same battle format from the predecessor is taken, but extended with improved mechanics, including the return of the "Planet Freedom" feature (last seen in Dragon Ball Z: Budokai 3). There are more combat combos and in-battle transformations, all topped of with a featured encyclopedia, which covers all the most important aspects of the Dragon Ball universe.
All the characters from the previous version are present, with some new ones (there are more in the Wii version), and up to ten characters can participate in a single battle, with a tag system. The locations include those of the previous game, with some additional ones.
Guldo™, Cui™, Babidi™
Bojack™, Syn Shenron™
Captain Ginyu™, Lord Slug™