The official website for the first-ever “touch battle” game for the Dragon Ball franchise — Dragon Ball Tap Battle — has updated with a full trailer and link to purchase the app on the Google Play Store.
Multiplayer battles are available to play over a Bluetooth connection. The game also contains “Super Break Fight” events whereby you can inflict massive damage.
The app will run you ¥350 — roughly $3.50 — and is currently available for devices running Android 2.3 and higher. An iOS version — specifically noted for iPhone 4, 4S, and 5 — is set for release at a later, as-of-yet unspecified date.