From the Press Release
DeNA and Capcom today announced that several classic characters from the beloved Street Fighter series will be making their debut in DeNA's strategic battle RPG, Blood Brothers 2! Beginning December 3, Blood Brothers 2 (BB2) players will get to experience popular Street Fighter characters, reimagined in the BB2 art style.
Here's the story: M. Bison has inadvertently opened a portal from Earth to the Blood Brothers' world of Arnashia. Seizing the opportunity, M. Bison hatches a plan to bring the most powerful entities from Arnashia back to Earth to fight alongside him. The Blood Brothers have another idea - they open their own portal, sucking in Street Fighter's Ryu who awakes to find legions of unspeakable creatures.
Three Street Fighter characters, Ryu, Cammy, and M. Bison, will be available when the update launches on December 3, with more characters to follow. Street Fighter in-game live events will take place starting December 3, giving players the chance, for a limited time, to add the new Street Fighter characters to their squad exclusively during the live events. Players will be able to keep the new Street Fighter characters in their BB2 squad indefinitely.
All Blood Brothers 2 players will have the chance to enter an exciting giveaway (through December 2) on the Blood Brothers 2 site, with the chance to win an iPad Pro, Street Fighter V Collector's Edition for PlayStation 4, or an awesome Chun-Li action figure.
Blood Brothers 2 is a strategic battle game with a strong focus on character abilities and evolution. The world is rich with hundreds of characters and multiple variations of each. The story starts with a traditional save-the-world story line, but instantly twists into deep sub plots of loyalty and betrayal. Get lost in an ancient kingdom filled with dragons, mythic gods, demons, knights, samurai, trolls, and dozens more creatures along your journey. The game is available on the App Store for iPhone and iPad, and on Google Play for Android devices.