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.
Float off on an all-new adventure as the powerful puffball, Kirby. Explore in 3D stages as you discover a mysterious world with abandoned structures from a past civilization—like a shopping mall?! Copy enemies’ abilities like the new Drill and Ranger and use them to attack, explore your surroundings, and save the kidnapped Waddle Dees from the ferocious Beast Pack alongside the mysterious Elfilin. Hope you’re hungry for an unforgettable adventure!