Called “gachapon,” “gacha gacha,” or “gacha” in Japan, these are easy-to-carry souvenirs with a real difference. Fun activities for older kids can be found at culture experience areas on the 3rd floor - in the departure lobby and after Passport Control.
Japanese washrooms are renowned for their high-tech sophistication, and the 10 isolated cubicles in the maze-like gallery (4 each for men and women, 1 unisex and 1 nursing room) will transport you to a new level of luxury. It's quite extraordinary.
Booking is recommended.