This article's title is a conjecture . There is no official name for the article's subject. Any changes to the article's title should reflect consensus.

"He was my best friend." ― Princess Cossette[1]

Princess Rosa Cossette D'Elise's pet dog was an adult Golden Retriever. He accompanied the Erusean Princess wherever she went.[2]

The dog was killed on Tyler Island while defending the Princess from conservative Erusean forces who attempted to shoot her.[1]

He is popularly nicknamed JPEG Dog by fans and the media.[3]

Origin

The name "JPEG Dog" was coined by fans reacting to his appearance in the sixth cutscene of Ace Combat 7: Skies Unknown, "The Rose Emblem". It refers to the dog's apparent lack of animation while standing next to Cossette, Ionela, and Alma, all of whom are fully animated. The dog's in-game appearance was widely reported as photograph cut-outs placed within the cutscene (hence the name), and it sparked minor interest across many gaming news outlets.[3][4][5][6][7] Kotaku also suggested the name "Ace Combat Dog".[8]

According to series brand director Kazutoki Kono, the dog's appearance was actually recorded in a video. Since he was told not to move, the dog sat very still, hence his appearance was mistaken for a static image.[9]

The real Golden Retriever behind the role was the pet of a member of Project Aces, the development team responsible for Ace Combat 7. Kono announced that the real dog had passed away a short time after the recording.[10]

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