Complex sentence: Pingo, wearing headphones, is outside his igloo listening to his record player when Pingu comes by and, once he hears the noise Pingu is making, tells Pingu to go away and slams into the igloo.
Split into simpler sentences: Pingo, wearing headphones, is outside his igloo listening to his record player when Pingu comes by and. Once he hears the noise Pingu is making, he tells Pingu to go away and slams into the igloo.