One feature it does have over Wii Sports however, is its game modes. Deca Sports offers the standard free play mode, along with a tournament mode, a training mode,  the Deca League, and a challenge mode. The Deca League pits you against three other teams to compete in every sport in the game, while the challenge mode is similar to the challenges in Wii Sports.

Curiously, the game does not feature Mii support, instead replacing them with their own bland characters that look Mii-like, but are completely devoid of any personality. Each team you can play as is made up of a mixture of heavy-weight, medium-weight, and light-weight characters. Which weight class you pick can often mean the difference between winning and losing, as some classes are just better for certain sports. In the Deca League, your teammates can get tired, which means you had better let them sit out the next sport, lest they under-perform. However, when it comes to the CPU-controlled characters, it hardly matters. They always seem to underperform when they’re on your team, yet can be insanely tough opponents on higher difficulty settings.