The Kiddie Arcade are buildings in Ninjago City, appearing in LEGO Ninjago: Masters of Spinjitzu. As the name implies, it is an arcade designed with children in mind, making it a good place for others to entertain them. There are at least two Kiddie Arcades, one being located in the city suburbs while another is on the same road as Dareth's dojo.
Kai took Lloyd to the arcade to occupy him while he continued the hunt for Samurai X. Lloyd complained about the trip claiming that it wasn't even a decent arcade, but soon discovered a group of Serpentine behind the arcade, talking about the Lost City of Ouroboros. Seeing an opportunity, Lloyd stole a Rattla costume from the Kiddie Arcade and passed himself off as a Serpentine in order to board the Serpentine Bus.
The Ninja later went to the arcade seeking Lloyd. Kai poked his head into the place, but not seeing the boy, they decided to check the video surveillance footage instead.
As the Ninja were evacuating the city, they drove by the arcade in the Ultra Sonic Raider.