The gameplay is pretty similar to Wii Sports for most of the games. The main new addition was the introduction of online play. It is done in a community similar to the Mario Kart 7 fashion. There is also a number of clubs for regions or province where you can play against those in those regions. Some sports implement the GamePad functionality.
The game was first issued on the Wii U eShop with Tennis and Bowling on October 30 for Japan and November 7 for the rest of the world. The sports can be purchased for $9.99 for permanent use or $2.99 for a day pass for all the sports. Each addition allowed the Wii U owner a free 24 hours with the launched sport.
Golf was distributed on December 18 worldwide featuring the 9 original holes from Wii Sports. Later in April 2014, the courses from Wii Sports Resort were added alongside a free weekend.
Boxing and Baseball were released on June 26 worldwide.