Easter egg (media)

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In computer software and media, an Easter egg is an intentional inside joke, hidden message or image, or secret feature of a work.wikipedia
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Minigame

minigamesmini-gamemini-games
Some games even include hidden minigames as Easter eggs.
Minigames occur variously as gameplay features, or as time fillers while levels are loading, or as Easter eggs even in non video games e.g. a DOOM-like game or a flight simulator in different versions of Microsoft Excel.

Adventure (Atari 2600)

AdventureAdventure (the original adventure game)Adventure'' (Atari 2600)
The term was coined to describe a hidden message in the Atari video game Adventure that encouraged the player to find further hidden messages in later games, leading them on a 'hunt'. The use of the term "Easter egg" to describe secret features originates from the 1979 video game Adventure for the Atari 2600 game console, programmed by employee Warren Robinett.
In this game, he introduced the first widely known video game Easter egg, a secret room containing text crediting himself for the game's creation.

Konami Code

The Konami Code, a type of cheat code, became an intentional Easter egg in most games, but originated from Konami's Gradius (1985) for the Nintendo Entertainment System.
The code has also found a place in popular culture as a reference to the third generation of video game consoles, and is present as an Easter egg in a number of websites.

List of Google Easter eggs

April Fool's Hoaxcontains many Easter eggsGoogle Easter egg
The Google search engine famously contains many Easter eggs, given to the user in response to certain search queries.
Easter eggs are hidden features or messages, inside jokes, and cultural references inserted into media.

Starship 1

According to research by Ed Fries, the first known Easter egg in an arcade game was in Starship 1 (1977), programmed by Ron Milner.
It contains the first known Easter egg in any arcade game.

In-joke

inside jokein-jokesinside jokes
In computer software and media, an Easter egg is an intentional inside joke, hidden message or image, or secret feature of a work.
In the computer industry, in-jokes may be hidden in the software as "Easter eggs".

Tetris

Sega's arcade version Tetris on Kyocera phonesdropping blocks
One example is the HP 54600B, known to have a Tetris (1984) clone, and the HP 54622D contains an imitation of the Asteroids (1979) game named Rocks.
The game, or one of its many variants, is available for nearly every video game console and computer operating system, as well as on devices such as graphing calculators, mobile phones, portable media players, PDAs, Network music players and as an Easter egg on non-media products like oscilloscopes.

Video game

video gamesgamevideogame
It is usually found in a computer program, video game, or DVD/Blu-ray Disc menu screen.
Easter eggs are hidden messages or jokes left in games by developers that are not part of the main game.

Chip art

Many integrated circuit (chip) designers have included hidden graphics elements termed chip art, including images, phrases, developer initials, logos, and more.
Chip graffiti is sometimes called the hardware version of software easter eggs.

Ready Player One

novel of the same name2011 novelof the same name
In the novel Ready Player One and its film adaptation, several Easter eggs are discovered in video games in a virtual reality setting, in particular highlighting the Adventure Easter egg.
The story, set in a dystopia in 2044, follows protagonist Wade Watts on his search for an Easter egg in a worldwide virtual reality game, the discovery of which will lead him to inherit the game creator's fortune.

The Book of Mozilla

Book of Mozilla
The Book of Mozilla
The Book of Mozilla is a computer Easter egg found in the Netscape and Mozilla series of web browsers.

List of Easter eggs in Microsoft products

easter eggoften contained Easter eggsSample text in Microsoft Word
List of Easter eggs in Microsoft products
Some of Microsoft's early products included hidden Easter eggs.

Jon Burton

Jon Burton, founder of Traveller's Tales, announced that many seemingly apparent Easter eggs in their Sega Genesis games came about as a result of introducing programming tricks to get around some of the difficulty they had in getting Sega's strict certification for their games, catching any exceptions during execution to bring the game back to a usable state as to pass certification.
Burton is a practicing Christian and included an Ichthys as an Easter egg in one of the tracks in Sonic R.

Cheating in video games

cheat codecheat codescheats
The Konami Code, a type of cheat code, became an intentional Easter egg in most games, but originated from Konami's Gradius (1985) for the Nintendo Entertainment System.
Easter eggs are a related feature.

Pinball

pinball machinepinball machinesflipper
Easter eggs in the 1997 version of Microsoft Office include a hidden flight simulator in Microsoft Excel and a pinball game in Microsoft Word.
In the 1990s, game designers often put hidden, recurring images or references in their games, which became known as Easter eggs.

HP-45

One of Hewlett-Packard's electronic pocket calculators, the HP-45 (introduced in 1973), had a built-in undocumented stopwatch.
It also contained an Easter egg that allowed users to access a not-especially accurate stopwatch mode.

Blink (Doctor Who)

Blinkan episode of ''Doctor WhoBlink" (''Doctor Who'')
The Doctor Who episode "Blink", in which the existence of video Easter eggs across a number of DVDs leads to solving the protagonists' dilemma.
Sparrow and her best friend's brother, Larry Nightingale (Finlay Robertson), must unravel a set of cryptic clues sent through time by the marooned Doctor, left in DVD Easter eggs.

Warren Robinett

Robinett, W.
The use of the term "Easter egg" to describe secret features originates from the 1979 video game Adventure for the Atari 2600 game console, programmed by employee Warren Robinett.
In response to this, Robinett placed a hidden object in the game that would allow the player to reach a hidden screen which displayed the words "Created by Warren Robinett," hence creating one of the earliest known Easter eggs in a video game, and the first to which the name "Easter egg" was applied.

Ready Player One (film)

Ready Player Onefilm adaptationits film adaptation
In the novel Ready Player One and its film adaptation, several Easter eggs are discovered in video games in a virtual reality setting, in particular highlighting the Adventure Easter egg.
After Halliday's death, a pre-recorded message left by his avatar Anorak announces a game, granting ownership of OASIS to the first to find the Golden Easter egg within it, which is locked behind a gate requiring three keys.

Ardian Syaf

* Indonesian artist Ardian Syaf is known to engage in the practice of hiding Easter egg references to political figures in the backgrounds of his artwork.
Syaf is known to engage in the practice of hiding Easter egg references to political figures in the backgrounds of his artwork.

Xyzzy (computing)

xyzzyxyzzy (command)
One of these was "xyzzy", a command which enabled the player to move between two points in the game world.
While talking to one of the members of the Ingres development team, Wim de Boer, at that time the secretary of the Ingres Users Group Nederland (IUGN), mentioned the removal of this Easter egg.

Hidden Mickey

50 Hidden Mickeysa peculiar Mickey Mouse shapeGolden Mickey Ears
Easter eggs may still appear in the content itself, such as a hidden Mickey in a Disney film or a real telephone number instead of a 555 fictitious telephone number.
Hidden Mickeys are slipped into many Disney animated films as Easter eggs.

Microsoft Excel

ExcelXLSMS Excel
Easter eggs in the 1997 version of Microsoft Office include a hidden flight simulator in Microsoft Excel and a pinball game in Microsoft Word.
Also, an easter egg in Excel 4.0 reveals a hidden animation of a dancing set of numbers 1 through 3, representing Lotus 1-2-3, which was then crushed by an Excel logo.

Make love, not war

making love not war“Make love, not war!”
If given the file name argument, so that the command reads, it will pause and respond [[Make love, not war|]] before creating the file.
On the DEC PDP-10, typing the command "make love" would result in the response "not war?". This action was copied on some older versions of Unix. Some recent operating systems have brought the easter egg back, such as FreeBSD 7.0; as of /src/usr.bin/make/job.c version 1.126.2.1 if someone types "make love", the coding will answer "Not war".

Reset button

reset keyresetresets
Similarly, the Radio Shack Color Computer 3's ROM contains code which displays what looks like three Microware developers on a [[Control key|]]+[[Alt key|]]+[[Reset button|]] keypress sequence—a hard reset which discards any information currently in RAM.
Purists consider this poor sport, a sentiment that manifests itself as an easter egg in the Animal Crossing series.