Near-immediately to the start of the game, the protagonist's poor little dog, Poro, is brutally executed by sudden impact with an oncoming vehicle. The scene cuts to black save for the heartbreaking cry of distress from the dog and an audible 'squelch' noise. When the scene returns, there is a puddle of gore that's been smeared and dragged off the cliffside. The characters constantly refer to this event as him "running away."
When the protagonist's dog, Poro, is suddenly and abruptly struck by a car, alongside the heartwrenching yelp is a very audible 'squelch' sound-effect. There are other similar instances throughout the game.