This Sonic the Hedgehog 2 Preview is from Mean Machines Sega Magazine Issue 1, published in the UK October 1992.

"After selling more Megadrive cartridges than any other in the history of the machine, Sonic the Hedgehog is back! Yes, once again, the megalomaniac, Doctor Robotnik is planning to take over the entire world, and only a certain blue, spiky hedgehog character (and his cute little chum) stand in the way!"

There was also an advert for a Sonic the Hedgehog 2 review in this same edition of Mean Machines so I've included that too.