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Portal 2 (game) Songs To Test By (2012)   Product detail Format: CD UPC: 68923001342 Label: Ipecac recordings Label number: 134 Running time: not on file Shipping date: October 30th, 2012   Product availability Buy the Portal 2 (game) Songs To Test By soundtrack CD today from The MovieMusic Store. Album Tracklist CD 1 (multi-CD album) 1.  Science is Fun [2:36] 2.  Concentration Enhancing Menu Initialiser [2:19] 3.  9999999 [3:12] 4.  The Courtesy Call [3:37] 5.  Technical Difficulties [3:23] ...see complete tracklist Feedback •  Email this page to anyone. •  Ask a question about the music in this movie. •  Add music info heard in the movie but not listed on the soundtrack CD. •  Add other info not listed above (trivial anecdotes, press quotes, recording anomalies, etc). •  Correct errors listed above (incorrect tracklistings, product codes, typos, etc).