The clip comes from a Game Grumps playthrough of Mickey Mousecapade, the Mickey Mouse platform game, in which Arin Hanson believes he has finally escaped before discovering another threat waiting for him. His startled reaction, moving from relief to horror in seconds, made it easy to lift out of context as a reaction sound. It has stayed popular with gaming editors because the joke needs no explanation: everyone recognises the feeling of thinking a difficult task is finished, only to find there is more.