The line is associated with Ana, the veteran support hero from Overwatch. Overwatch launched in 2016, and Ana joined its roster later that year, bringing a catalog of terse, personality-rich dialogue. “Good Kitty” circulated beyond matches through isolated voice-line clips, soundboards, fan edits, and short reaction posts. Its staying power comes from the contrast between Ana’s authoritative character and the warmly approving phrase. Because the recording is so brief, creators can fit it into pet videos and gaming jokes without interrupting the pace.