Capcom has released several Street Fighter IV artwork and screenshots, illustrating Akuma, a new secret opponent for the arcade version of the game. The next iteration of the genre-establishing fighting game series features the return of four classic "World Warriors": Ryu, Ken, Chun-Li and Dhalsim. The characters and environments are rendered in stylized 3D computer graphics (CG), while the game is played in the classic Street Fighter 2D perspective with additional 3D camera flourishes. The traditional six-button controls for the game return with a host of new special moves and features integrated into the input system.