The world of Japanese mobile gaming has been known as one of the oldest and richest in the mobile gaming industry. Ollie Barder mentions in an article "Earlier in March, there was an incident where a player of the mobile game Granblue Fantasy spent $6,065 in one night in order to get a rare character". The reason this is such a big thing is they made a lot of money in one night but it was for the wrong reason. With this game specifically, you need to use in game transactions to do a lot of things so that's how it makes money.
"Today, Japan’s mobile gaming market is not only the biggest globally by revenue but also the oldest, most mature – and extremely competitive (the largest number of listed mobile game developers worldwide, hundreds of private ones, increased influx of foreign game makers, focus on the limited local demand side, etc.)." Serkan Toto explains that Japan mobile gaming is one of the better types of gaming they have. As I explained with social gaming, Japan has dropped the ball on it, but mobile gaming they are rolling. They invest a lot of money on mobile gaming alone and they are getting a lot of positive feedback on it. Toto also says " The acceptance of local users to consume and pay for games on their mobile devices, a gaming culture deeply rooted in Japanese society, and other specific factors led to the birth of a whole new industry about nine years ago". Therefore, Japan is very happy with their mobile gaming industry and should continue it.