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

New gameplay footage gives a glimpse at boat and flight modes in Sonic Racing: CrossWorlds. Sonic Racing: CrossWorlds features classic Sonic game locations accessed through portals during races.

Sonic Racing: CrossWorlds features iconic characters ... and abilities to create a customized racing experience suited to their gameplay style. Be sure to check out IGN's round-up of everything ...