These song arrangement are played on the piano by Heliumkidd. It's very pleasing the the ears... I can listen to this all day. All the sheet music for these songs are also available for download on Heliumkidd's site.

New Super Mario Bros.

Super Mario Land 2

Super Mario Land Medley

Super Smash Bros. Melee - Hyrule Temple

Waverace 64 Medley