The highlight of this week's US Nintendo downloads was actually released a day early.
Dillon's Rolling Western - a completely new IP developed internally at Nintendo - came as a surprise release from Nintendo, who announced its arrival during its Nintendo Direct presentations. There are trailers through that link.
Elsewhere, new 3DS owners may be interested in trying out Nintendogs + Cats, for which there is now a playable demo.
Here's the full list:
Dillon's Rolling Western - Roll, build and fight as you defend the villages of the Wild West from an invasion of earthly proportions. Protect the innocent and live to tell the tale in this unique combination of tower-defense strategy and character-driven action. (For Nintendo 3DS)
Nintendo eShop and Nintendo DSiWare
Box Pusher - This top-notch puzzle game will captivate you. Prove you have the brain power to solve more than 250 missions and master all situations with the correct strategy. Play with friends or make and exchange your own levels. (For Nintendo 3DS / Nintendo DSi)
2 Fast 4 Gnomz - Four brave gnomes venture on a journey so epic, they don't even know where they're going. Join Bumb, Berzerk, Speedster and Uncle Time as they run, fly, bounce, glide and break their way through the magical lands of Gnomia. (For Wii)
nintendogs + cats (demo version) - Take the experience of teaching and caring for a furry friend anywhere you go. In the demo, you can choose to play with dogs from all three versions of nintendogs + cats: Golden Retriever, French Bulldog and Toy Poodle (each sold separately). This demo can be downloaded from the Golden Retriever & New Friends title information page in the Nintendo eShop. (For Nintendo 3DS)