The latest issue of Weekly Jump magazine has revealed a new mobile game with Goku and many other characters from the most popular Jump's manga series. Weekly Shonen Jump Jikkyou Janjan Stadium is a dynamic fighting game featuring Smash Bros-like arena battles for up to 4 players at the same time. The game is being developed by Konami and will be launched later this year in Japan. The game will be available for Android and iOS.
Konami has published an official trailer showing the characters, their most important attacks, and general game's mechanics. The strongest Goku's attack is of course Kamehameha. You can watch the video below.
If you want to be up to date with news about the game follow official Twitter account and check the official website. Unfortunately, both only in Japanese.