Easter egg (media)

2018 film directed by Steven Spielberg

intentional inside joke, hidden message or image, or secret feature of a work

stock sound effect of a man screaming

2014 browser game

computer Easter egg found in the Netscape and Mozilla series of web browsers

cheat code

thumb|The door of Room A113 c. 2005 A113 and its variants are an inside joke and Easter egg in media developed by alumni of California Institute of the Arts, referring to the classroom used by graphic design and character animation students.

urban legend software bug in the video game Civilization

subtle representation of cartoon character Mickey Mouse's image

microscopic artwork built into integrated circuits