This would really be something if it wasn't for the region locks.
Import shoppers now have a new source for Japanese titles - Amazon Japan.
Previously, the Japanese branch of the retail giant would only allow domestic shipment of video games, but a policy change has allowed for international shoppers to take advantage of the site's selection. Currently, only items sold directly by Amazon Japan are eligible.
A full step-by-step procedure has been provided by USGamer. Note that due to Nintendo's region locking policies foreign systems would be required.
