began being used in the early 1980s, in reference to a new genre of character action games that emerged from Japanese arcade developers, drawing inspiration from manga and anime culture. According to Eugene Jarvis, these new character-driven Japanese action games emphasized "character development, hand-drawn animation and backgrounds, and a more deterministic, scripted, pattern-type" of play. Terms such as "action games" or "character games" began being used to distinguish these new character-driven action games from the space shooters that had previously dominated the video game industry. The emphasis on character-driven gameplay in turn enabled a wider variety of subgenres. In 1980, Namco released Pac-Man, which popularized the maze chase genre, and Rally-X, which featured a radar tracking the player position on the map. Games such as the pioneering 1981 games Donkey Kong and Qix in 1981 introduced new types of games where skill and timing are more important than shooting as fast as possible, with Nintendo's Donkey Kong in particular setting the template for the platform game genre. The two most popular genres during the golden age were space shooters and character action games. While Japanese developers were creating a character-driven action game genre in the early 1980s, American developers largely adopted a different approach to game design at the time. According to Eugene Jarvis, American arcade developers focused mainly on space shooters during the late 1970s to early 1980s, greatly influenced by Japanese space shooters but taking the genre in a different direction from the "more deterministic, scripted, pattern-type" gameplay of Japanese games, towards a more "programmer-centric design culture, emphasizing algorithmic generation of backgrounds and enemy dispatch" and "an emphasis on random-event generation, particle-effect explosions and physics" as seen in arcade games such as his own Defender (1981) and Robotron: 2084 (1982) as well as Atari's Asteroids (1979). Namco's Bosconian in 1981 introduced a free-roaming style of gameplay where the player's ship freely moves across open space, while also including a radar tracking player & enemy positions. Bega's Battle in 1983 introduced a new form of video game storytelling: using brief full-motion video cutscenes to develop a story between the game's shooting stages. Other examples of innovative games are Atari Games' Paperboy in 1984 where the goal is to successfully deliver newspapers to customers, and Namco's Phozon where the object is to duplicate a shape shown in the middle of the screen. The theme of Exidy's Venture is dungeon exploration