Japan's Sankei Shimbun reported on Monday that stricter countermeasures against the sale of R4 and similar flash carts could be brought before the Diet, Japan's national legislature.

Collectively known as "majikon" in Japanese, these devices remain widely available in major electronics districts like Tokyo's Akihabara and Osaka's Den Den Town despite a court ruling last year which declared sales of majikon illegal. Due to a lack of criminal penalties attached to that decision, the majikon were merely driven off store shelves and onto sidewalk displays (arguably making them more accessible than before, since they now sit in plain view to all pedestrians). The new law would close that loophole and make flash cart vendors criminally liable.

In describing the impact of piracy on video game companies, the newspaper claimed that use of majikon worldwide amounted to damages exceeding 4 trillion yen (over $48 billion USD).

Other plans being considered according to the newspaper are restricting imports of majikon (as they are largely manufactured outside Japan) as well as invoking the Unfair Competition Prevention Law. No further details of any of these proposals were given, only that they are expected to be presented to the Diet "as early as next year."