Nintendo has rolled out a new update today via their eShop and Nintendo Shop Channel.

The highlight of the day is the 3DS title, Dillon’s Rolling Western, which is a tower-defense game with a little bit of action thrown into the mix.  You’ll take the roll of Dillon, an armadillo ranger who will need to defend villages from the Wild West from an invasion.  The game is available for $9.99 and is a 3DS-only title, as it is in fact in 3D.

Next up is Box Pusher ($4.99), a DSiWare title that has you pushing boxes to solve puzzles and make your way through maze-like levels.  It’s a classic style puzzle game with over 250 missions/levels to complete.

For those looking for a little WiiWare love this week, Nintendo has dropped 2 Fast 4 Gnomz (500 Wii Points), an action-adventure, platform game that has a group of gnomes rapidly making their way through various obstacles across 80 levels across the land of Gnomia.  Think Super Mario Bros. meets Sonic the Hedgehog, but with gnomes.

Gnooooooomes!

Additionally, Nintendo has made a demo available for nintendogs + cats for the 3DS.