Kakko didn't score, but he showed flashes of his speed, skill and power in his 15:31 of ice time, including slicing through three Jets to get a shot on goal that Hellebuyck stopped at 7:36 of the second period.
"That's my game, I like to do that," Kakko said. "And, yeah, hopefully I score next time."
Fox was up and down in his 12:24 of ice time, but Quinn expected that from the Jericho, New York, native who grew up a die-hard Rangers fan going to the Garden with his father, who is still a season ticket holder.
The Rangers acquired Fox in a trade from the Carolina Hurricanes on April 30.
"I thought he got better and better as the game went on," Quinn said. "Listen, a kid from New York, a season ticket holder his whole life, I can't even imagine what was going through his mind when this game started. It's an exciting night, probably more so for the Fox family than any player on our team, but I thought he settled in as the night went on."