With Grand Theft AutoвЂ™s open-ended game worlds offering countless opportunities for developers to hide away secrets, Rockstar really excelled themselves in 2002вЂ™s Vice City. Grand Theft Auto Vice City (2002): The literal easter egg Chloe, however, is less amused than we were at this discoveryвЂ¦

Playing a central role in Uncharted 2вЂ™s back-story, the Venetian explorer Marco Polo also lends his name to a kidsвЂ™ pool game, which players can humorously reinact in chapter six by making Drake jump into the rooftop pool. Uncharted 2: Among Thieves (2009): Marco Polo Tucked away behind a wall in Warden QuincyвЂ™s SharpвЂ™s office, the room and its entrance donвЂ™t feature in any maps nor can be spotted using BatmanвЂ™s detective vision in fact, they are only accessible via several applications of explosive gel. By manipulating an вЂњinvisibleвЂќ dot (actually the same colour as the background), gamers could access the secret credits room, pictured above.ДЄlthough Atari discovered theyвЂ™d had the wool pulled over their eyes after a young fan wrote a letter to them detailing the secret, they decided against re-releasing the game due to the prohibitive cost of manufacturing a new memory chip (then $10,000).ДЄccording to Robinett, the use of the term вЂњEaster eggвЂќ to refer to such secrets was coined by Atari staff as the discovery of his message reminded them of traditional chocolate hunts.Д«atman: Arkham Asylum (2009): Secret blueprintsДЄn Easter egg so well hidden the gameвЂ™s creators actually had to publicise it themselves after six months of gamers failing to spot it, the wardenвЂ™s secret room in Arkham Asylum contained the blueprints for Arkham City, which would become the gameвЂ™s sequel. As a result, Adventure creator Warren Robinett introduced possibly the earliest Easter egg to the world.

Adventure (1979): one of the earliest Easter eggs!Д«ack in 1979, Atari seldom credited its authors for their work.

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