on the line. Some variations require the new killer to "get out of "town" (the skelly board) to the "killer line" drawn some distance away from the main skelly board. At that point, the killer flicks his top back to the skelly board at which point the killer rules are negotiated by yelling them out, the player saying them first wins: For instance "No hit a killer-be a killer", "three baby taps" or "three blasts", "all boxes are mine", etc. which will govern how powerful the killer will be. Some aggressive players would typically "kill" other player's caps by not just flicking but kicking their own cap into opposing players cap's, called booting, and sending it way out of the board, sometimes damaging or losing the cap, adding further insult to the loss. The last player on the field wins. History The game was one of the most popular street games in New York City and the surrounding areas from the 1950s through the 1980s, but is less popular today. The remnants of spray-painted skully boards may be found on some streets and school yards. At Bronx House Emanuel Summer Camp an over-sized skully board was painted on the basketball court and the game was played with shuffleboard equipment. It is said that the game has existed as long as the crown-rimmed bottle cap, which was invented in 1892. Reference to the game has been made in the New York Times in August 1920, and again in July 1950. In his autobiography, Isaac Asimov recalled playing the game in the 1920s. In popular culture Jean-Michel Basquiat made several paintings in 1980 to 1982 featuring the skully board, remembering playing the game as a child in 1960s Brooklyn. A 2010 PBS documentary, New York Street Games, includes skully. Skully is played by kids in Jonathan Lethem's novel The Fortress of Solitude (Random House, 2003). The Skully Board Killers, a true crime story by Pavle Stanimirovic and Burl Barer is about the New York City street killers Stanimirovic met throughout his criminal life. The game is referenced in Notorious B.I.G.'s 1994 track "Things Done Changed." Skelly is referenced in U-God's verse on Raekwon's song "Knuckleheadz" from the album "Only Built 4 Cuban Linx". Skelly is referenced in Jacqueline Woodson's book Brown Girl Dreaming. Skully is referenced in Jacqueline Woodson's picture book The World Belonged to Us. The credits on Spike Lee's 1994