An unreleased Super Nintendo game based in the comics of the same name, "Shadowhawk" by Jim Valentino. A prototype surfaced in 2003 but it was only last year that Rose Color Gaming was preparing to sell a 100 limited cartridge run.
However, Jim Valentino was not so keen on the whole deal and took legal action, despite at least 36 copies of the reproduction cart being sold before sales stooped. That was how the ROM managed to be dumped.
There are also small hacks to make this more playable than the original prototype. It's kind of fun to play, platforming around "Bionic Commando" style with boss fights taking on a one-on-one versus fighting mode. Enjoy!