https://www.polygon.com/2018/6/21/17489032/nintendo-switch-vertical-dock-flip-grip-kickstarter-tate-mode

More than a dozen games for Nintendo Switch, including Treasure’s classic shoot-’em-up Ikaruga and the recently released Arcade Archives version of Donkey Kong, can be played in a vertical orientation. But playing with your Switch screen in a vertical position — otherwise known as “tate mode” — isn’t necessarily as easy or comfortable as playing games in the system’s standard horizontal orientation.

A new accessory called the Flip Grip attempts to address that by giving Switch owners a dedicated dock designed with vertical orientation in mind.