Jonesy

Jonesy (sometimes Jonesey) is a collection of Easter eggs referring to a supposed calico cat aboard the. It is presented as if a pet of someone on board the Autumn, which would have been on board during the Battle of Reach.

In Halo: Combat Evolved, Jonesy's owner had lost the cat by the time the Autumn reached Installation 04 and put notices on the bulletin board and various other Autumn boards to alert other personnel to the lost cat. In Halo 3, there are posters reading "Still missing my cat Jonesey," with an apparent silhouette of a cat in the bottom right hand side of the poster. A similar poster can half be seen in the trash on the left side of Foundry facing the fan. A picture of a cat can be seen and the word "missing" and "nesey", which is believed to read "Jonesey". In Halo: Combat Evolved Anniversary, on several message boards it is stated that a cat was found. However, the pictures of the "cat" are actually pictures of an opossum as a reference to an Internet meme.

Trivia
Jonesey is a reference to Ellen Ripley's cat of the same name on the commercial towing ship, the Nostromo, from the movie franchise Alien. Many aspects of Halo were inspired by elements from the Alien franchise.