The Japanese arcade industry hauls in 450 billion yen a year. Today, there are nearly 6,000 licensed arcades in Japan while there are 10,297 small game spaces located in shopping malls, hotels, theaters and bowling alleys. Arcades can only be open from 10 a.m. to midnight and laws prohibit those under 18 from entering an arcade after 10 p.m. On Okinawa, those under 18 can’t go to an arcade after 8 p.m. Be aware!