Bandai Namco has just released the English version of Dragon Ball Z: Dokkan Battle on the Google Play Store as well as the iTunes App Store. In order to run this game you will need a device with Android (4.1+) or iOS (6.0+).
The game is played using color spheres to attack your opponents. Using the correct color for your character will earn you more health and Ki. Once your character’s Ki is at max you’ll be able to pull off ultimate attacks. There are also strengths and weaknesses to each character that holds a color. The strength and weakness chart can be viewed in battle.