"It was nice," Larsson said. "I think that's what every guy dreams of coming out of the penalty box. I knew right away what I was going to do, and (it) ended up pretty well."
Sprong scored 55 seconds later to make it 5-2 after Jarred Tinordi's clearing attempt deflected to him off the stick of Justin Schultz.
Lukas Reichel cut it to 5-3 at 15:02 when he redirected Alex Vlasic's point shot.
"I felt pretty good," said Reichel, who is going to be sent back to Rockford of the American Hockey League. "I felt more comfortable and more confident. It felt good playing with [Andreas Athanasiou]. We have kind of the same game, with speed and stuff. It was a good learning experience. I want to keep getting stronger, keep getting better for next season."
McCann made it 6-3 at 11:54 of the third period with a shot from the high slot, and Morgan Geekie scored at 14:51 for the 7-3 final.
"There were sloppy portions to the game," Hakstol said. "Some of that is inherent coming off of a big win the other night (a 4-2 victory against the Arizona Coyotes on Thursday to clinch a spot in the Stanley Cup Playoffs). You can talk yourself out of it as much as you want, but in reality, it looked like some of that maybe leaked into our game tonight."
NOTES: Kraken forward Jaden Schwartz (undisclosed) did not play. Hakstol said he is day to day. … Eberle is the fifth Kraken player to score at least 20 goals this season, joining Schwartz, McCann, Sprong and Matty Beniers.