The game comes directly from Nintendo eShop, you will be able to go online, get updates etc.
After setup process the game will be available to launch on your own account, just as any other game or app you purchased directly in Nintendo eShop.
It’s In Our Blood!
Discover a reborn Mortal Kombat™ Universe created by the Fire God Liu Kang. Mortal Kombat™ 1 ushers in a new era of the iconic franchise with a new fighting system, game modes, and fatalities!