Stealth game Metal Gear Solid: Peace Walker is a T-rated game in North America. The means it is suitable for kids 13-years-old-and-over. Japan, however, has a different rating system. Time to get out the scissors to cut things out.
Peace Walker has a C-rating in Japan (15-years-old-and-up) and to prevent the game from getting a 17-and-up rating and so that younger players can play the game, Peace Walker designer Hideo Kojima tweeted that the developers did things like make the game blood-free.
One "absolutely standard bit" for the Metal Gear Solid series, however, had to be cut so that the game could get the C-rating. Thus, for the Japanese version of the game, that part had to be changed. For the North American and European versions, the scene appears as originally intended.
That's a shame for Japanese players.