Kyle Okposo was the New York Islanders' four-goal hero in the NHL on Friday, while Barry Trotz's return to Nashville resulted in defeat.
Right wing Okposo became the third player in 2015 to score four goals in a single game as the Islanders overcame the Pittsburgh Penguins 6-3.
Okposo, in his seventh season, finished off the first hat-trick of his career midway through the third period, helping the Isles pull ahead 4-3.
Unsatisfied, he added one more on a power play with two minutes, 31 seconds to play before Michael Grabner sealed the win with an empty-net goal.
The Penguins had led 2-0 thanks to Sidney Crosby and David Perron before Okposo started the Islanders' response.
Crosby put his team 3-2 up late in the second period, but the Islanders struck four times in the last.
James Neal and Alex Ovechkin both scored twice, but the former's Nashville Predators had a 4-3 win over the Washington Capitals.
Capitals coach Trotz returned to Nashville, where he coached until the end of last season, as an opposing coach for the first time, but his Caps were beaten.
The Winnipeg Jets continued their dominance of the Chicago Blackhawks, claiming a 4-2 victory at United Center.
It marked the Jets' third win in as many games against the Blackhawks this season, with all played in Chicago.
Jakob Silfverberg's double saw the Anaheim Ducks to a comfortable 5-1 win over the New Jersey Devils.
Vancouver Canucks goaltender Ryan Miller stopped 28 shots to help his team to a 3-0 win over the Carolina Hurricanes and the New York Rangers edged the Columbus Blue Jackets 2-1.