In January 2001, Sega announced it was discontinuing the Dreamcast to become a third-party developer. The following December, Sega released an expanded port of "Sonic Adventure 2" for Nintendo's GameCube. Afterward, Sonic Team USA developed the first multi-platform "Sonic" game, "Sonic Heroes" (2003), for the GameCube, Microsoft's Xbox, and Sony's PlayStation 2. The game, again directed by Iizuka, was designed for a broad audience, and Sonic Team revived elements not seen since the Genesis era, such as special stages and the Chaotix characters. Reviews for "Sonic Heroes" were mixed; while its graphics and gameplay were praised, critics felt it failed to address the problems of previous "Sonic" games, such as the camera. Sonic Team also ported "Sonic Adventure" with additional content to the GameCube in 2003 and Windows in 2004, to mixed reviews.