Siliconera is reporting that the upcoming Dragon Ball DS 2 will contain a hidden extra: an emulated ROM of the first Famicom game for the franchise (and one of the first franchise video games overall), Shenron no Nazo (The Mystery of Shenlong). The game was actually released here in North America back in 1986 as Dragon Power with most references to the original version removed (Bulma renamed “Nora”, panties flipped upside down into a hamburger, generic crystal balls, etc.).
Namco-Bandai still has not announced a North American release of the game, so it will be interesting to see if this kind of bonus material makes it into a possible domestic release.