The Neverhood: Some soundtrack secrets

I suppose that you've heard about the Neverhood - the masterpiece quest from 1996.
Do you know what audio messages the authors of the Neverhood hid in the game? I did a research for you. Many tracks are reversed, slowed down or accelerated. There are many oddities and Easter eggs in game including incredibly well known song! What is it? Make a guess and watch the video.
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Please help me decipher the "scary robot" cryptic message.
It's something about glasses, pina colada and cola :)
Also please support addition of heavy soundtrack in game:
• The Neverhood but with...