Dragon Ball Z Dokkan Battle ArtThis page has pictures for Dragon Ball Z: Dokkan Battle, both art & renders. Dragon Ball Z: Dokkan Battle is a free-to-play Android and iOS mobile game developed by Akatsuki Inc and published by Bandai Namco Entertainment. It was released in Japan for Android on January 30, 2015 and for iOS on February 19, 2015. Dragon Ball Z: Dokkan Battle was eventually released worldwide for iOS and Android on July 16, 2015. The game has exceeded 300 million downloads worldwide and has grossed over $2 billion in worldwide revenue.