Protip: The majority rules on copyright and piracy is that if something is not avilable for comercial sale, meaning it is not being sold in stores for the profit of the copyright holder, then it is not illegal to download and use. while this is rarely a valid defense with music, as Itunes, etc has nearly every song produced, ever, you would be hard pressed to find a place that sells new copies of Super Mario Brothers for the original NES. Video game companies seem to be less petty than musicians in this regard as well, as the number of "cases" regarding emulators for outdated consoles are slim to none.