WOAAAAH! I loved every second of it. Amazing medley, I haven't played many kirby games but I totally recognize the way it sounds, and you completely nailed it :D
I also LOVE that it sounds almost as a progressive-symphonic rock track because of the way it goes forward constantly evolving till it gets to a complete climax where your ears are pure joy. from 3:15 onwards its INCREDIBLEaaaaaaa
awesome job, I loved it ^^