Less than a year after the game's release, Nintendo started issuing version 1.01 with the following updates:
-The Wii remotes in the opening warning screens, the title screen, and the sport selection screen are now in jackets.
-An opening cut-scene showing the roster has been added to the baseball game.
-If the ball hits the ground in the baseball game, the Mii that catches it now throws it to first base instead of just holding it.
-A winning replay is shown at the end of the boxing game.