From Sony: All-new Wayne vs. Wayne mode where gamers earn "99 Time" and can temporarily activate Gretzky to go six-on-five against opponents or alternately defend against him when an opponent activates 99 Time. To challenge the skill levels of all hockey videogame fans, Gretzky NHL 2006 for PSP offers the Gretzky Challenge with unlockable, playable versions of Gretzky from his days as an Edmonton Oiler, Los Angeles King or New York Ranger.