Dragon Ball RPG: Shōnen-hen (“Boyhood Arc”) — an upcoming Android and iOS mobile game in Japan — was just unveiled earlier this week in the December 2013 issue of V-Jump, and Namco-Bandai is ready for the next stage of promotion: an official website!
The included screenshots show off various aspects of the game. It is divided into four “chapters” (comprising the four major arcs of Goku’s childhood), which are further divided into “episodes” recreating events from the TV series.
In addition to battles, which appear to take the form of a turn-based RPG, there is apparently an item-collection aspect. Even when the player is not actively engaged with the game, Goku continues to adventure and bring back items. He can then bring these items to Bulma, who will use them to invent useful items.
The site also stresses the number of characters and the amount of play, though no hard figures are provided.
Thanks to Super Saiyan Prime for the heads-up.