While reading about literal and non-literal sounds, I couldn't help but think about Super Marios Bros. for the NES. This is one of the few things I could think of off the top of my head that has more non-literal sound than literal sound. The soundtrack is constantly playing throughout the entire game and literal sounds are made only when the gamer performs an action other than moving back and forth. This game would be incredibly awkward without the soundtrack playing, so it was an easy decision for the creators to make. The constant non-literal sound makes it easier to just keep on going in the game too. It's always sort of pushing the player to keep moving with the music. The literal sounds that Mario makes compliment the music, so that also keeps the player going.