Nintendo Switch

The Nintendo Switch (called the Nintendo NX in development) is Nintendo's upcoming home and mobile hybrid system, announced on October 20th, 2016 and set to be released in March of 2017.

Features
The game console will feature a main system that a controller can plug into. With the controller plugged in, the game footage will be displayed on the TV screen. With the controller detached, the footage will be displayed on the controller's screen. The buttons on the controller can be removed and used either as separate controllers, similar to Nintendo Entertainment System controllers, or used as one controller together. The detachable screen can be brought away from the console to other locations, unlike how the Wii U functioned, making this console more of a hybrid between home and mobile systems. The console will also use small cartridges, similar to the Nintendo DS line. The base console also has two ports in the front, though it's currently unknown what they are for.

A different controller, similar to how standard controllers appear, was also revealed. All versions of the controllers will have two Control Sticks, eight face buttons, and trigger buttons. Both of the two detachable controllers have one Control Stick, four face buttons, and one trigger button each. The mobile screen controller also has a kickstand that can be used to prop the system up.

Players can also link up multiple consoles to each other (four or the handheld systems were connected at a few points in the trailer) using wireless connectivity between the mobile screens and the base console can connect to others in some fashion (eight were connected during the Splatoon segment).

Several Mario series amiibo were also shown in the trailer, though it wasn't shown how or even where to use them. With the reveal of The Legend of Zelda: Breath of the Wild at E3 2016, it was revealed that amiibo are compatible.

Revealed games
Among the games shown, a new 3D Mario platformer was revealed, showing Mario running around a town area, followed by a castle area. The town area has several, brightly-colored, buildings with the castle area having sand and water geysers around it. It is currently unknown if this game will play out like Super Mario 64, Super Mario 3D World, or be a new type of platformer altogether.

In another game looking similar to Mario Kart 8, King Boo can be seen racing on GCN Yoshi Circuit, though it is unknown if he will be included as downloadable content for the original game or if it will be a new game entirely. It's also shown the player can use two items instead of one, like in older Mario Kart games.