in the dutch version, instead of "green light!" the "it" person sings in a slow voice "annemaria", followed by a quick and loud "koekkoek!" ("cuckoo!") when he/she turns around (like "red light!"). "koekkoek!" is also the dutch equivalent of a peek-a-boo game played with babies, where the parents hide their face with their hands, then reveal themselves whilst saying "peek-a-boo!" (also known in dutch as "kiekeboe!").