Guitar Hero - Greatest Hits, developed by Activision for the Sony PS2 Playstation 2, is a music rhythm video game that brings together the most popular songs from past entries in the iconic Guitar Hero series. Players mimic playing a real guitar using a specially designed guitar controller to hit notes as they scroll down the screen in time with the music. You can jam to some of the biggest tracks from bands like Queen, Nirvana, and The Police. This game features single-player or multiplayer modes for an elevated gaming experience .