Tokyo | Ryohei Kim is furious at the Bank of Japan, although it’s not interest rates that have raised his ire. The 31-year-old blames the central bank for the plummeting yen that has decimated his beloved vintage video game shop.

An explosion of overseas tourists are taking advantage of the weakest yen in 34 years. Some have flocked to his shop in Tokyo’s Akihabara district, famed for being at the heart of Japan’s otaku – or diehard fan – culture. With boosted buying power, they have stripped the shelves of retro games.