Adjacent to a standard line about how many hours and minutes the player has experienced in Mafia II is the Playboy timer. Like many other games, it has a statistics screen that shows how the player's in-game actions are being tracked.
I played a press demo of Mafia II several weeks ago and poked around in the game's menus. Mafia II tallies how long you 'read' its in-game Playboy centerfolds. There are games that count the number of virtual miles you race in them.
There are video games that track the calories you burn while playing them.
