"鬼ごっこ - onigokko - playing demon" is a Japanese tagging game. In this game, the chaser is called "oni" (a demon-like creature from hell), and his mission is to catch one of the other players by touching them. Once the oni has touched another player, that player will then become the new oni and the old oni will go back to being a player who's being chased.

"Gion is a district of Kyoto, Japan, originally developed in the Middle Ages, in front of Yasaka Shrine. The district was built to accommodate the needs of travelers and visitors to the shrine. It eventually evolved to become one of the most exclusive and well-known geisha districts in all of Japan." - Wikipedia

"ねんねんころりよ・・・ - nen nen korori yo..." is a Japanese cradle song similar to the English "Hush, little baby" song. It is called "江戸子守唄 - Edo komoriuta - Edo Lullaby" and is extremely beautiful, even if the melody sounds quite sad. And almost a little eerie...

The "箏 - koto" is a traditional Japanese stringed musical instrument.

くるり、ふらり、ふわり、くらり - kururi, furari, fuwari, kurari