Aikatsu! is a popular collectible card arcade game in Japan. The cabinet is smaller, because it's aimed at children—little girls. And yet, there are a handful of grown men who play it.
At most arcades in Japan, there's a section for kids. The kiddy games are often card (or plastic puck) based. There are kiddy arcade games aimed at little boys and ones aimed at little girls. Sounds like these two clowns didn't get the message.