"We test more of a real-world basis," Lamar said. "It helps us find bugs and things that couldn't be found in other scenarios."
The laboratory tests more than 50 games a week, with more games arriving daily.
Lamar tests the games just like customers play them, sitting in a comfortable chair with a wad of cash. But he also keeps a hospital food tray in front of him with a checklist of things he's looking for. He also has printouts of the game's screens for reference.
Tacy Donovan, the West Virginia Lottery's deputy director of video lottery, said it's important for Lamar and his crew to understand how the games work in case there are customer service complaints once the games are available to the general public.
Alvin Rose, deputy director of security for the limited video lottery, said, "It's like when you buy a new car. Everything's perfect until you start driving it."
When players have a complaint, Lamar is able to pull up their exact game on a machine in his lab and replay it to see if something went wrong.
The complaints seldom pan out. Players usually are just confused, but the Lottery takes each complaint seriously.
"If we don't keep the public's trust, they won't play the games," Rose said.
Rose said it's a common misconception the West Virginia Lottery can change the odds on machines to affect the amount of money players win.
"We can't make a machine hot or cold. Nobody can change the odds of that machine," he said.
Donovan said video lottery games are designed to pay back 92 percent of all money they receive. That payout is spread over the life of the machine, however, so don't expect to win $92 for every $100 you spend at a slot machine.
"You might put $100 in and not win a penny. But the guy behind you might win $10,000," Lamar said.
And that's why Lamar spends his days playing the slots.
If someone is supposed to win $10,000, the Lottery needs to make sure they get the money . . . because it doesn't happen very often.