1. The article highlights the success of several small-scale indie games developed in Japan that have sold over 500,000 units. These games, which include titles like "Hatsune Miku: Project DIVA Mega Mix+" and "Sakuna: Of Rice and Ruin," have managed to achieve significant commercial success despite their modest origins, showcasing the vibrant and thriving indie game scene in Japan.

2. The article discusses how these indie titles have been able to find success in the Japanese market, often by catering to niche audiences and leveraging the popularity of established franchises or characters. The article also notes that the availability of platforms like Nintendo Switch, which is particularly popular in Japan, has played a crucial role in enabling these indie developers to reach a wider audience.

3. The article highlights the importance of these indie game successes for the Japanese gaming industry, as they demonstrate the ability of small-scale developers to create high-quality, commercially viable products. This, in turn, can inspire and encourage other aspiring indie developers in Japan, further strengthening the country's reputation as a hub for innovative and diverse gaming experiences.