Kotkaniemi answered 13 seconds later to cut the lead to 2-1, chasing down a lofted pass from Jaccob Slavin and snapping a shot blocker side on Gibson on a breakaway.
"We had [53] pucks on the net, we just hoped a couple more would go in," Kotkaniemi said. "There's still some sleepy moments once in a while. We could be a little sharper."
Terry responded for Anaheim to push it to 3-1 at 12:01. He warded off Brett Pesce as he cut across the slot, turned in the left circle and scored short side on Andersen.
Terry has scored in consecutive games since returning from an upper-body injury that caused him to miss seven games.
"I'm just trying to judge myself on if I'm an impact player or not, and I felt like tonight I was," Terry said. "I cut into the middle, I was on the backhand, so I tried to get some separation and spin around and shoot it. Even after I spun, I had an idea where the net was, and I was just trying to put it in the upper part."