2012 four CD set containing music from the popular video game. Portal 2 is the sequel to 2007's Game of the Year and draws from the award-winning formula of innovative gameplay, story, and music that earned the original over 70 industry accolades. Give your ears the gift of sound and let them relive the glory days of testing in full fidelity, without the distracting hisses and pops that accompany being submerged in acid.