New Super Mario Bros. U
The next entry into the long running Super Mario Bros series, New Super Mario Bros U introduces a variety of new elements to the franchise, including new power-ups and baby Yoshis with different special abilities. Up to four players can play at a time using Wiimotes, but an additional fifth player can use the Wii U GamePad to manipulate the game environment to assist (or grief) other players.
You can check out Susan Arendt's full preview of New Super Mario Bros. U here.
Susan Arendt: By tapping on the controller's screen, I could place temporary platforms to help the foursome as they navigated the landscape. As they raced across unstable stars, I put blocks over the yawning chasms to prevent anyone from plummeting to their demise. The blocks disappear after a few seconds, and only a few can be on screen at once, but with careful placement and proper timing, I was able to lead a few players up a makeshift staircase to collect cooper
a ginormous coin.