Come back with us, if you will. Back to the middle ages of video gaming. Back to the early '90s. Mortal Kombat was a huge, bloody (and we do mean bloody) hit in the arcades. Unfortunately, console makers were concerned with how such a gory game would be received in family living rooms. Thus, the game's signature red blood was replaced with white "sweat" for the console versions...

Full story: joystiq.com