The Switch has been a huge success for Nintendo, already outselling both of its predecessors: the GameCube and the Wii U. But the portable console — coming up on its second holiday season — is about to face its biggest test yet, with Nintendo needing to sell nearly 14 million Switches over the holidays if it wants to meet its lofty 20 million unit sales goal that it set at the beginning of the year. And it has to do it without the benefit of a Zelda or a Mario game to bolster sales.
