Complex sentence: It was released for Playstation 2, Gamecube, Xbox and Game Boy Advance and is the only game in the series to be published by Activision instead of Electronic Arts, which published the game's two predecessors.
Split into simpler sentences: It was released for Playstation 2, Gamecube, Xbox and Game Boy Advance. This was the only game in the series to be published by Activision instead of Electronic Arts, which published the game's two predecessors.