Wii Sports

Bundled with every western Wii console for the first few years of its life, Wii Sports serves to demonstrate the capabilities of the Wii Remote's (or "Wiimote's") intuitive motion controls across five different sports. These include tennis, baseball, golf, boxing, and most popularly bowling (try releasing the ball backward and see what happens; you'll laugh).

Internal Name
Internally, the game is known by the generic title SPORTS PACK for REVOLUTION, where Revolution refers to the Wii's own pre-release codename.

Build Dates
Included in the file timeStamp.txt at the root of the disc is a build date, alongside another internal name, "Pack Project". On the Wii Sports + Wii Sports Resort combo disc, this file is located with the rest of the game's files; e.g., on the PAL disc, in /EU/sys/sports.

Config File
gameConfig.ini in the disc's root includes a few settings, several of which have been commented out. The second commented line references (Super) Mario Club, Nintendo's internal software testing group.

Revisional Differences
Some changes were made for later pressings, after the Wii Remote began coming packaged with a silicone sleeve. These changes are also present in the Nintendo Selects version of the game, for those who were late onto the Wii train or just hated the cheap paper case the game originally came in.

Wii Remote Sleeves
The warning screens and all other graphics of the Wii Remote were updated to reflect the silicone jacket's release.

Baseball
The only changes that do not involve the Wii Remote jacket affect baseball. First, there is an animation that was added to the game opening scene: as it begins, the opposing teams face one another and the camera passes between them. As the camera passes each Mii, they look toward the screen, giving the cutscene some personality. This may have been added to make clearer who is on the teams, since all but the pitcher are randomly selected.

In the original release, if a grounder was caught quick enough to call an out, the Mii who caught it would simply hold it. In the re-release, should this event happen, the Mii will also throw the ball to first to make it a bit more realistic.