Previously only available with Metroid Prime: Pinball, Nintendo of America is planning to offer the Pak for sale on it's site!

Currently only compatible with Metroid Prime: Pinball and Mario & Luigi: Partners in Time, Nintendo of America will be offering the DS Rumble Pak online in their website's store.

Costing a reasonable $9.99, it is only available to US and Canadian gamers due to the Nintendo shop's shipping policy. Rest assured, if we hear word of a similar offer over here, we'll let you know.