Are you actually able to play sonic the hedgehog nazo unleashed

If you have seen Nazo Unleashed on Youtube, then you noticed that there's a button that says "play" and it automatically presses. The real website where Nazo Unleashed was first uploaded on was newgrounds.com. If you're talking about being able to play it as a flash game, then no, you can't play it. It's just a video that has a "play" button, but it means playing it as a video.