Microsoft has issued the first round of DLC for Kinect Sports: Season Two. The Challenge Pack #1 adds a new mini-game activity for each of the game's six sports. Most of them boil down to practice drills, like returning an infinite stream of tennis shots or landing a forty yard field goal in football. There's also the more quizzical addition to darts, which requires players to solve math problems with accurate throws (which is sure to be a challenge, given our experience with the game).

The add-on is free, and marks the first in a series of free monthly downloadable content. Microsoft plans to expand the game every month through "spring 2012" with new activities and, at some point, a new sport. There's no telling what the new sport might be, though we can only hope it doesn't involve any more running in place.