Our favorite Japanese forum buddy kei17 posted up a couple new Jump pages showcasing a “new” character in the upcoming Raging Blast for the PS3 & Xbox 360:
That is Broli (the main villain from DBZ Movie 8, and subsequently the 10th and 11th movies, as well) in a “new” Super Saiyan 3 transformation for the character.
… Yep.
While this is this most recent example of “new” forms created for existing characters in video games, there have been other examples in the past. Toriyama himself designed an all-new, beefed-up version of Mecha Freeza for Super Dragon Ball Z, and prior to that Majin Boo gained all sorts of new absorption modifications in Dragon Ball Z 2 / Budokai 2, along with the new fusion Yamhan and an alternate form of the “What-If?” scenario fusion of Gotan.