The Crablet is a small hostile creature from Stress Level Zero's VR games Boneworks and Bonelab, where it appears in underground and industrial areas and reacts to the player with skittering movement and distinctive idle noises. Fans began ripping and sharing its sounds as the games built a large VR community, and the idle clips became useful shorthand for something small, strange, and lurking just out of sight. They remain popular with editors because the sound is instantly recognisable to players while still working as generic creature ambience for other videos.