Macky is Cosmo's laptop and close associate. The brainchild of Steve Jobs, Macky is a 15-inch Macbook Pro running OS-X. Starting with Greatest Duel Ever 6, Macky became the prime editing tool for Cosmo's videos.
Best friends to Keytar, Macky is the straightman of the group, being highly intelligent and quick-witted. He resents anything made by Microsoft, however he had reluctantly served as a wireless router for Cosmo's Xbox on a few occasions.
During the filming of GDE6, Macky had suffered an accident where he had fallen off of a moving vehicle and crashed into the pavement. However, due to his robust unibody construction he survived with only minor scrapes and bruises.