All-Star Battle League

JoJo's Bizarre Adventure: All-Star Battle League (ジョジョの奇妙な冒険　オールスターバトル, JoJo no Kimyou na Bouken Ōru Sutā Batoru League) is a competition created in order to promote JoJo's Bizarre Adventure: All-Star Battle . It was announced on June 9, 2013 with the fifth trailer of the PS3 game. The event consists of all the characters announced so far, with more to come.

Cheer Campaign

People around the world can cheer for a particular character; their votes are totaled which will designate which characters make it to the finals. The Finals will be broadcasted as an 1vs1 CPU battle to decide the winners.

Reference:

http://spaghettimiles.tumblr.com/post/52529775349/jojos-bizarre-adventure-all-star-battle-league

Translated version of Rules:

http://spaghettimiles.tumblr.com/post/52607044023/translation-and-explanation-of-the-jjba-all-star