Sprunki is a fan-made take on Incredibox, the music mixing game where players drag icons onto characters to build loops. In Sprunki each character adds a beat, effect, melody or voice, and switching to Horror Mode transforms their looks and sounds into darker versions. Gray became a favourite from that mode because his part feels emptier and more ominous than most. Clips and remixes spread through game videos and fan animations, keeping the horror version of Gray recognisable even outside a full play session.