The previously unreleased GBA game that's all about the helicopters.
UPDATE: Kuru Kuru Kururin is now live on the eShop, however the price was corrected to $6.99, a standard GBA price. Original story follows.
The Nintendo game list has added a new game to the list for tomorrow: Kuru Kuru Kururin.
Previously unreleased in North America, the game will launch tomorrow on the eShop for $4.99 US. Although a version of the game launched on the Game Boy Advance, the game will retail for $4.99 rather than the standard $6.99 or $7.99 used for Game Boy Advance games.
Regardless of the source, tomorrow's release will have you piloting the Helirin helicopter through ten different worlds to save your brothers and sisters.