@XG247: It is vital the soundtrack of a video game fits well with the genre, setting and style. Thrash metal would be ridiculous in FarmVille, but it makes Splatterhouse the game it is.
We don’t notice it until we stop and think about it, but the soundtrack is one of the things that sticks with you long after the game has been put in the attic. What do you remember from Tetris? The plinky, plonky ever enfastificating (that’s totally a word for speeding up) blips.