The Great One will not only appear on the cover, but he'll also be playable in the game. NHL Slapshot features a special hockey stick peripheral that allows you to mimic shooting, checking, and passing while you're out on the ice.
This partnership with EA Sports is just one in a long line of titles that Gretzky has supported over the years. He used to be the perennial cover man for Sony's first-party hockey series until it folded, and before that Wayne had his name on numerous titles on a variety of systems.
Can you make Wayne's head bleed on the ice? Doubtful.