From Halopedia, the Halo wiki
A virtual Easter egg is an intentionally-hidden message or feature in an object such as a movie, book, CD, DVD, computer program, or video game. The term draws a parallel with the custom of the Easter egg hunt observed in many western nations.
This practice is analogous to hidden signature motifs such as Diego Rivera including himself in his murals or Alfred Hitchcock's legendary cameo appearances.
This category has the following 10 subcategories, out of 10 total.
Pages in category "Easter eggs"
The following 8 pages are in this category, out of 8 total.
Media in category "Easter eggs"
The following 35 files are in this category, out of 35 total.