The Game Audio Tutorial

You might also be looking our old book : "The Game Audio Tutorial", or new book : Game Audio Implementation.

Mario music crazyness !

Amazing but conclusive proof that some people have far too much time on their hands !

Custom mario levels by IsoTkh
Discovered courtesy of boing boing and Tom Jackson.

Related but unrealated - Mario composer Koji Kondo discusses his approach to composition.
Mario Maestro shares his secrets (GDC 2007)
Links have a habit of changing / disappearing. I have done my best to make sure these are correct but do not take any responsibility for what might be at the end of them ! Please let me know if any are not working and I will do my best to update them.