Just click the green flag, press a button and listen. There is the SMB Power Down, Game Over and The Invincibility Theme (if it doesn't sound right then press it again)
Koji Kondo for composing all of these. The names are from the Super Mario Series For Piano: Intermediate/Advanced piano solos book (heh, I mean all the music is from that book). This was a project I made a long time ago, it was originally made on mobile, and yes, I fixed a few things before I shared it.
