Killer7 is a 2005 action adventure game from Grasshopper Manufacture and Capcom, directed by Goichi Suda, known as Suda51. Its Heaven Smile enemies are grinning, near invisible creatures that attack the assassin syndicate known as the killer7 and blow themselves up on contact. Their distinctive laugh became one of the game's most remembered audio cues, instantly tied to danger even when the enemy cannot be seen. Clips of the sound later circulated on soundboards and in meme edits, where it is reused far outside the game for creepy laughs and fake-out scares.