Extra police officers were added behind the Lakers bench for the game, and arena workers confiscated signs that were deemed inappropriate.
“We just try to worry about the game once it starts,” World Peace said. “That's their fans. They're not Lakers fans.”
After hitting a pair of 3-pointers in the first 2:30, World Peace finished with 12 points.
Perkins returned from the right hip muscle strain he suffered in the Thunder's first-round clinching win at Dallas on May 5 but left early in the third period and didn't return.
The Thunder didn't need him, at least Monday night.
They dominated from early on and led by as many as 35 late in the third quarter.
On the defensive end, the Thunder forced 15 Lakers turnovers and frustrated Lakers star Kobe Bryant, who finished with 20 points but was just 7 of 18 from the floor.
“Kobe Bryant is one of the best players to ever, ever play this game and all we want to do is make him take some tough shots,” Brooks said. “We did a good job on him, but it's only one game. We need to do the same thing come Wednesday night.”