Gambling in Japan is a curious mix of strict laws and surprising exceptions....

https://tysonsinterestingperspectives.cloudhinter.com/posts/what-do-you-win-in-pachinko-if-cash-is-illegal-exploring-japan-s-unique-gambling-culture

Gambling in Japan is a curious mix of strict laws and surprising exceptions. While most forms remain illegal, you’ll find popular legal outlets like pachinko parlours, horse racing, keirin cycling, and motorboat racing (kyōtei)