just watch and listen. a game about cute monkeys rolling in plastic balls is pretty much famous for its great music. that, and it's also famous for getting difficult as you progress. characters: gongon, baby, meemee, and aiai song is the credits theme from the first super monkey ball game for the gamecube(that same music was reused as the first boss theme in banana blitz HD).
credits: sega, amusement vision, and ryu ga gotoku studio. this is living proof that not even sega games are safe from having amazing soundtracks, which is totally fine.