The 1984–85 Pittsburgh Penguins season was the team's 18th in the National Hockey League. It marked the debut of Mario Lemieux for the Penguins. Lemieux debuted on October 11, 1984 against the Boston Bruins and scored a goal with his very first NHL shot, on his first shift. Later that season, Lemieux played in the NHL All-Star Game and became the first rookie to be named the All-Star Game's Most Valuable Player. Despite missing seven games during the season, Lemieux scored 100 points and won the Calder Memorial Trophy as the rookie of the year.