Phineas and Ferb: The titular characters build one of these in their backyard and into the city in the very first episode with a lot of impossible turns. And then it goes even further since, due to outside forces, the ride gets moved from its original position and they end derailing and bouncing around, ending in France, and even outer space.
They would later do the same thing again... but as a Musical Episode, complete with a song as the coaster rides through the city.
The Rick and Morty episode "The Whirly Dirly Conspiracy" centers on a roller coaster that exists in a theme park protected by an immortality field, meaning no one in the park can die as long as the field is operational. Aside from the fact this means the coaster can be incredibly outlandishly dangerous, it has an added threat: the apex of the highest peak actually barely extends past the immortality field, a fact utilized for an assassination attempt.