While Metroid Prime: Federation Force won’t be fully released for another few weeks, Nintendo has released the Blast Ball component of the game for free into the eShop temporarily.
Nintendo 3DS owners who visit Nintendo eShop can download Blast Ball, the game’s friendly competitive multiplayer mode. In Blast Ball you can battle it out complete with online support, and even compete with players who own the full game once it launches. In early September, the multiplayer servers will switch over to support the full game only.
Metroid Prime: Federation Force will be released for the Nintendo 3DS on August 19th.