From the very beginning of the game, the player is treated to a trailer that features music from Final Fanatsy composer Nobuo Uematsu. Although the main theme of the game is rather short, it is performed by an orchestra and sounds amazing. In fact, many of the soundtracks in Smash are classic songs(sometimes even 8-bit) that have been redone in full orchestra. Director Masahiro Sakurai enlisted the help of 36 video game music composers from various companies to write music for the game. Even the the theme songs for all 35 playable characters in the game have be redone in full orchestra.
There is an extremely wide variety of sound effects in Super smash Brothers Brawl;each of the 35 characters have various sounds that are specific to them as well as voices. There are even items in this game that vary from firecracker launchers to laser guns. When it comes to audio, much of the sounds effects appear to be synthesized, especially for distinct sounds like beam swords and certain character abilities. However, a few sounds appear to be sampled, such as the sound of a frying pan hitting another character. The sound effects in this game really help give the characters a sense of weight and strength. For example, when a heavy character is walking across the stage, the sound effects for his foot steps will be a lot louder than a lighter character's.