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| genre = Action
| modes = Single-player, multiplayer
| arcade system =
is a 1981 action video game developed by Konami and published by Sega for arcades. It was released in North America by Sega/Gremlin. The object of the game is to direct five frogs to their homes by dodging traffic on a busy road, then crossing a river by jumping on floating logs, turtles, and alligators.
Frogger was positively received by critics upon its release, and is considered one of the greatest video games ever made. It was followed by numerous clones and several home-only sequels in the Frogger series. By 2005, 20 million copies of its various home video game incarnations had been sold worldwide.
Gameplay
The objective of the game is to guide a frog to each of the empty homes at the top of the screen. The game starts with three, five, or seven frogs, depending on the machine's settings. Losing all frogs results in a game over. The player uses the four-direction joystick to hop the frog once. Frogger is either single-player or two players alternating turns.
thumb|left|224px|Four frog homes at the top of the screen are filled. A fly is in the center one, which can be jumped on for 200 points.
The frog starts at the bottom of the screen, which contains a horizontal road occupied by speeding vehicles such as race cars, dune buggies, trucks, and bulldozers. The player must guide the frog between opposing lanes of traffic to avoid becoming roadkill and losing a life. After crossing the road, a median strip separates the two major parts of the screen. The upper half consists of a river with logs, alligators, and turtles, all moving horizontally across the screen in opposite directions. By jumping on swiftly moving logs and the backs of alligators and turtles, the player can guide the frog to safety. The player must avoid snakes, otters, and the open mouths of alligators. A brightly colored female frog is sometimes on a log and may be carried for bonus points. The very top of the screen contains five "frog homes", and at least one is always open and available. These sometimes contain bonus insects or deadly alligators.
When all five frogs are in their homes, the game progresses to the next level with increased difficulty. After five levels, the difficulty briefly eases and yet again progressively increases after each level. The timer gives 30 seconds to guide each frog into one of the homes, and resets back to 60 ticks whenever a life is lost or a frog reaches home safely.
In 1982, Softline stated that "Frogger has earned the ominous distinction of being 'the arcade game with the most ways to die'." There are many different ways to lose a life (illustrated by a skull and crossbones symbol where the frog was), including being run over by a road vehicle; jumping into the river; running into snakes, otters, or an alligator's jaws; sinking while on top of a diving turtle; riding a log, alligator, or turtle off the side of the screen; jumping into a home already occupied by a frog or alligator; jumping into the side of a home or the bush; or running out of time.
The opening tune is the first verse of a Japanese children's song called "Inu no Omawarisan" ("The Dog Policeman"). Other Japanese tunes include the themes to the anime series Hana no Ko Lunlun and Rascal the Raccoon. The American release has the same opening song plus "Yankee Doodle".
Scoring
Forward steps score ten points, and every frog arriving safely home scores 50. Ten points are awarded per each unused ½ second of time. Guiding a lady frog home or eating a fly scores 200 each, and when all five frogs reach home to end the level the player earns 1,000 points. A single bonus frog is given at 20,000 points, while 99,990 points is the maximum high score that can be achieved on an original arcade cabinet. Players may exceed this score, but the game "rolls over" and only keeps the last five digits.
Release
The game was developed by Konami. On July 22, 1981, Sega gained exclusive rights to manufacture the game worldwide., was tasked by Gremlin founder Frank Fogleman to check the company's library of video presentations to see if there was anything worth licensing, and she stumbled across Frogger. Thinking the game deserved a chance in spite of being "cute", Falconer requested a licensing window for playtesting. She persuaded executives who denigrated Frogger as a "women and kids game" by reminding them of Pac-Man. Sega/Gremlin agreed to pay Konami $3,500 per day for a 60-day licensing window. A prototype was playtested at a San Diego bar and was so successful that distributors agreed to resell the game based on the test alone.
Wanting to broaden the player base demographics, Jack Gordon, director of video game sales at Sega/Gremlin, noted that women shied away from the "shoot 'em ups" on the market, and that games like Frogger "filled the void".
Ports
thumb|Frogger disk by [[Sierra On-Line for IBM PC]]
Frogger was ported to many contemporary home systems. Several platforms such as the Commodore 64 support both ROM cartridges and magnetic media, so they received multiple versions of the game.
Sierra On-Line gained the magnetic media rights and sublicensed them to developers who published for systems not normally supported by Sierra. Cornsoft published the official TRS-80/Dragon 32, Timex Sinclair 1000, and Timex Sinclair 2068 ports. Because of that, even the Atari 2600 received multiple releases: a standard cartridge and a cassette for the Starpath Supercharger. Sierra released disk or tape versions for the Commodore 64, Apple II, original Macintosh, IBM PC and Supercharger-equipped 2600, and cartridge versions for the TRS-80 Color Computer.
Parker Brothers received the license from Sega for cartridge versions which it released for the Atari 2600, Intellivision, Atari 5200, ColecoVision, Odyssey², Atari 8-bit computers, TI-99/4A, VIC-20 and Commodore 64. Parker Brothers spent $10 million on advertising Frogger. The Atari 2600 version was programmed by Ed English.
Coleco released stand-alone Mini-Arcade tabletop versions of Frogger, which, along with Pac-Man, Galaxian, and Donkey Kong, had three million sales combined.
The game was ported to systems such as the PC-6001 and Game Boy (with two separate releases for the Game Boy and Game Boy Color in 1998). Frogger is one of the 6 launch games for the 1983 Gakken Compact Vision TV Boy.