The 0¢ Store is a store that only appears in the episode "Mall Girl Pearl."
It is dark and covered by "do not cross" tape. The exterior is much like other shops: There is a sign that reads the store's name and "Take what you want :)" The lining of the doorway is dark red metal.
The floor is the same color as the floor outside of the store, which is red and white. The rest is dark and obscured.
The window of the store is visible behind the escalator.