New Super Mario Bros. U -- Swinging Hammer + Shell = 1-Up in Hammerswing Caverns HD

ESRB Rating: Everyone with Comic Mischief Grab a shell and proceed to the area with a lot of Red Koopas walking back and forth below. Wait for the hammer to swing into place then release the shell to take them all out and earn a 1-Up. --- Official Site: http://newsupermariobrosu.nintendo.com/ Like Wii U on Facebook: http://www.facebook.com/WiiU Like Nintendo on Facebook: http://www.facebook.com/Nintendo Follow us on Twitter: http://twitter.com/NintendoAmerica Contact Us: http://www.nintendo.com/contact Newsletter: http://www.nintendo.com/consumer/newsletters/