Worried the new Mario Bros. will lack that bitterly tough feeling of challenge? Head inside to quash those worries...

If there was one concern that a few gamers had of New Super Mario Bros. Wii, it was that it wouldn't offer as much of a rewarding challenge as th portly plumber's previous outings. Today, we've shed those worries. Courtesy of GoNintendo comes a brand new gameplay video showing off some mind-bending moves that can be pulled off in the game.

We should warn you though: adverse effects of viewing the video may include a dangerous urge to want to play the game.

And as our own treat to you dear readers, we've also added over a dozen new screenshots of the game to the gallery. Be sure to check them out!

Enjoy the whole batch here!

New Super Mario Bros Wii comes to Europe on November 20th. We can hardly wait any longer!