. >> reporter: ted hartwell is among the 1% to 2% of meamerica dealing with a gambling disorder. >> theain focus right now needs to be concentrating on making sure that we're not marketing these types of gambling machines to minors, and the people who are playing them are aware that the odds are still in the house's favor no matter what. >> we want to make the games engaging, but we're not out trying to addict people to a new kind of gambling. all of our games are only in licensed casinos. you have to be 21. so no kids are ever playing this game. we did a study last year about how people perceive the balance between chance and skill in our games, and they see these games very similar as to how they see blackjack. so ultimately they're no different than the games already in the casino. >> reporter: they're looking to increase its foot print in las vegas, across the country and overseas. what's going on? gray boy sees it as a win-win for both the house and thrill-seeking betters alike. >> the blue ones you have to shoot twice. >> reporter: just like a gamer would. do you think there's a p