Listen to the sound clip 9. 1:44 from Knock 'Em Downs: World's Fair - Video Game Music: 9. 1:44 9. 1:44 This sound is from Knock 'Em Downs: World's Fair - Video Game Music Video game music from Knock 'Em Downs: World's Fair for DS. Published by Bayer Diabetes Care (2010). Go to the full soundboardwith more sound clips Search