Homonym: Easter Egg (Surprise)
An "Easter Egg" refers to a hidden feature, message, or inside joke within a piece of media, such as a video game, movie, or software. These surprises are often placed by creators for fans to discover, adding an extra layer of enjoyment and engagement.
In the context of video games, Easter Eggs can include secret levels, special items, or references to other games or pop culture. For example, Atari's Adventure is known for having one of the first Easter Eggs, where players could find a hidden message from the game's creator, Warren Robinett.