Gubby is a dev killer from the Roblox survival horror Experience Forsaken that looks like a rabbit and is exclusively available to the game's developers. The character was added to the game after X / Twitter user @transgbunny posted a rendering of the character via a post suggesting that he be added as a dev killer. Gubby went viral in May 2025 as the subject of memes, including fan art and edits, some of which recreate famous images and memes that feature rabbits, replacing the rabbit with Gubby.