Frogger (フロッガー?) is a 1981 arcade game developed by Konami. It was licensed for North American distribution by Sega-Gremlin, and worldwide by Sega itself. It is regarded as a classic from the golden age of video arcade games and Konami's first big hit.
Due to a legal dispute between Konami and Sega, Frogger never received any direct sequels until 2000, when Konami was finally able to secure the rights to the franchise. It received ports to various consoles and computer systems of the time, most of which were outsourced to third party companies.
The gameplay of Frogger revolves around guiding a frog to one of the five (or seven) empty ponds at the top of the screen. There are no action buttons, as the player only moves the frog in the four cardinal directions. In order to reach the ponds, the player must guide the frog first through a street full of traffic, then through a river with moving logs and lillypads. Once you reach a pond, another frog will appear at the bottom of the screen, which the player must take to one of the empty ponds again. Once all ponds are filled the game loops at a higher difficulty.