In 2001, Sega announced it would transition from a first-party to a third-party software publisher, in response to the international failures of the Saturn and Dreamcast. Wanting to reach new players by creating an enhanced version of one of its older games, in June 2003 Sega released Sonic Adventure DX: Director's Cut, a port of Sonic Adventure for the GameCube and Windows. While mostly identical to the original release, Sonic Adventure DX features updated graphics, including updated textures and more detailed character models, aims for a frame rate of 60 instead of 30, and sports a redesigned Chao-raising system that uses connectivity with the Game Boy Advance (GBA). It includes 60 new missions and the option to unlock emulations of all 12 Sonic games released for the Game Gear. Additionally, Metal Sonic can be unlocked as a playable character if all 130 emblems are collected. These features were added to appeal to players of the original game. Sonic Adventure DX received mixed reviews. GameSpot was disappointed the rerelease did not address the problems of the original version, irritated the graphics were only marginally different, and dissatisfied with its collision detection. GameSpot offered some praise for the extra features, such as the missions, but concluded players were better off playing the Dreamcast version. IGN agreed, calling it "a sloppy port of a game that has long been undeserving of its high praise." IGN noted its frequent frame rate drops and described its camera one of the worst in a video game. IGN said the connectivity to the GBA Sonic games added depth but concluded this was not enough to compensate for the port's problems. Nintendo World Report was more positive, praising the Game Gear games for retaining their multiplayer support and finding Sonic and Tails' gameplay enjoyable.