This article is about the train car. Did you mean the episode?
The Ball Pit Car is a train car from the episode "The Ball Pit Car." The car is a gigantic restaurant-style play place. Anyone able to make it through the various levels of tunnels and stairs arrives at a prize corner containing prizes such as the Jiggle Wiggle and what seems to be a Water Person trapped in a jar. The car was significantly damaged after the Conductor had the Steward shoot it up while attacking Tulip and her travelling companions.
Tulip, Atticus and One-One entered the Ball Pit Car after exiting the Graph Car. There, they enjoyed themselves playing before encountering Khaki Bottoms, who charged them with helping him return a jiggly toy to its proper place by climbing through the play area. Upon reaching the prize area, Khaki allowed the group to choose a prize, and One-One picked the jiggly toy itself.
The Ball Pit Car consisted of an enormous indoor playground with a ball pit and a large number of slides. Visitors were asked to remove their shoes before entering the play area.