tv/ movies: Sweeney sisters medleys always included: "Clang Clang Clang Goes --- -------"?

Questions

What is the name of the cloud-riding, glasses-wearing koopa in the Super Mario Bros. series??

When was the first 'Final Fantasy' created??

Who created the music for N2O: Nitrous Oxide??

What are names of the two brothers in the Double Dragon games??

Who is the developer at Nintendo responsible for classics like Donkey Kong, Super Mario Bros., and The Legend of Zelda??