[The unreleased sequel to Punch Out!!][link], now available for download or purchase in the form of [a reproduction cart][cart].
[link]: http://www.gamesetwatch.com/2009/04/mike_tysons_intergalactic_powe.php “GameSetWatch – Mike Tyson’s Intergalactic Power Punch ROM Released”
[cart]: http://www.retrousb.com/product_info.php?cPath=23&products_id=71 “Mike Tyson’s Intergalactic Power Punch”