The hidden content, included incidentally or not, in the games has been a way to encourage gamers to play a certain title over and over again. But sometimes the hidden content may prove to be a real headache. Two years ago, Rockstar Games was involved in a huge scandal after a patch, entitled HotCoffee, was published on the Web. The patch unlocks a very explicit sex minigame hidden in GTA: San Andreas. 

As a consequence, ESRB modified the game rating game to 18+ and some countries even banned the game from distribution. Rockstar was forced to re-label the game.

This week, Microsoft has managed to avoid a similar situation after it was discovered that Halo 2 for Vista contains partial nudity.

"It has come to our attention that an unfortunate, obscure content error which includes partial nudity was included in our initial production of "Halo 2" for Windows Vista," Microsoft said in a statement Friday morning.

Microsoft added that it would be difficult to stumble across the offending content. "This file is not in the game itself, nor will someone who simply plays the game ever encounter it," Microsoft stated.

Already the company had taking measures to remove the offending content from the game.

"As such, we have updated the initial game packaging at retailers with a label, so customers are aware before purchasing the game. Additionally, we've developed an online update which can be downloaded from www.halo2.com to remove the content."