CAPCOM has Street Fighter IV (iTunes Link) in the iTunes App Store for $1.99 (4.99 – 3 instant savings) for a limited time.

Street Fighter IV delivers the first true fighting game on iPhone. This uncompromising fighter features all the visceral thrills, fantastic graphics and brilliant gameplay that are hallmarks of the series. Long time Street Fighter fans can jump into the action and have an instant familiarity with the controls. For more casual players Street Fighter 4 features numerous settings and tutorials that put you on the path to world warrior. Plus, it’s multiplayer. Street Fighter 4 supports head-to-head arcade play over Bluetooth.