From Wikipedia
The Videogame Rating Council (V.R.C.) was introduced by Sega of America in 1993 to rate all video games that were released for sale in the United States on the Sega Genesis, Sega Game Gear, Sega CD, and rarely, some computer games. The rating had to clearly appear on the front of the box and on all the advertisements for the video game.
GA — General Audiences: Appropriate for all audiences. No blood or graphic violence. No profanity, no mature sexual themes and no usage of drugs or alcohol. Examples of games receiving this rating were: Castlevania: Bloodlines, Disney's Aladdin, Ecco the Dolphin, Earthworm Jim, Sonic the Hedgehog 3, and most sports and puzzle games.