Earthworm Jim began as a video game released in 1994, created by Doug TenNapel and developed by Shiny Entertainment, before expanding into an animated television series in 1995. Peter Puppy was introduced as Jim's loyal sidekick, a small alien in a dog like form whose monster transformation became one of the series' running gags. Short clips of his voice and reactions later circulated on soundboards and in retro gaming communities, where fans preserve brief character sounds from 1990s games and cartoons for edits, streams and nostalgic meme posts.