Tags

Gang Tags, or graffiti tags, are a type of collectible item in Grand Theft Auto: San Andreas. Carl Johnson has to search for a total of 100 gang tags all around Los Santos and spray over them the Grove Street Families' tag with a spray can. Tags and their basics are first introduced during the mission Tagging Up Turf. Spraying over an enemy tag increases the player's respect and respraying all 100 tags is required for 100% completion. The reward for finishing the work with this collectible are the weapons Molotov Cocktail, AK-47, Sawn-off Shotgun and TEC 9 delivered to the kitchen at the Johnson House, and Grove Street gang members will start to carry Desert Eagles, MP5s and knives instead of the usual pistol and TEC 9.

Trivia

 * If the police spot Carl spraying a tag, a Wanted Level will be applied, which should be noted with tags located in high-traffic areas. This is because the spray can is counted as a weapon, and "shooting" a weapon will cause you to attain a wanted star when the police see you, though a "real-world" perceptive can also be applied in that spraying graffiti is generally considered an illegal act by itself.
 * A tag is not considered completely sprayed until you see the on-screen message confirming it and you hear a beep.