with similar titles from other manufacturers in an attempt to cash in on the success. Iwatani felt that arcade games only appealed to men for their crude graphics and violence, and that arcades in general were seen as seedy environments. For his next project, Iwatani chose to create a non-violent, cheerful video game that appealed mostly to women, as he believed that attracting women and couples into arcades would potentially make them appear to be much more family friendly in tone. Iwatani began thinking of things that women liked to do in their time; he decided to center his game around eating, basing this on women liking to eat desserts and other sweets. His game was initially called Pakkuman, based on the Japanese onomatopoeia term “paku paku taberu”, referencing the mouth movement of opening and closing in succession. The game that later became Pac-Man began development in early 1979 and took a year and five months to complete, the longest ever for a video game up to that point. Iwatani enlisted the help of nine other Namco employees to assist in production, including composer Toshio Kai, programmer Shigeo Funaki, and hardware engineer Shigeichi Ishimura. Care was taken to make the game appeal to a “non-violent” audience, particularly women, with its usage of simple gameplay and cute, attractive character designs. When the game was being developed, Namco was underway with designing Galaxian, which used a then-revolutionary RGB color display, allowing sprites to use several colors at once instead of using colored strips of cellophane that was commonplace at the time; this technological accomplishment allowed Iwatani to greatly enhance his game with bright pastel colors, which he felt would help attract players. The idea for energizers was a concept Iwatani borrowed from Popeye the Sailor, a cartoon character that temporarily acquires superhuman strength after eating a can of spinach; it is also believed that Iwatani was also partly inspired by a Japanese children's story about a creature that protected children from monsters by devouring them. Frank Fogleman, the co-founder of Gremlin Industries, believes that the maze-chase gameplay of Pac-Man was inspired by Sega's Head On (1979), a similar arcade game that was popular in Japan. Iwatani has often claimed that the character of Pac-Man himself was designed after the shape of a pizza with a missing slice while he was at lunch; in a 1986 interview he said that this was only