Rovio announces a Sonic Rumble delay, but while revealing some big new gameplay changes that are coming to its battle royale game.

Now, in a new update from developer Rovio (known for the Angry Birds games), the global launch has been pushed back to spring, with its 1.2.0 update. Sonic Rumble - Pre-Registration Trailer Sonic ...

Kiviaho explains that the standard game mode spans three rounds with a minimum session ... which has its own "movies and all kinds of transmedia projects", but that ultimately, Angry Birds is 15 and ...