Originally, the ride had no real theme beyond being a boardwalk-style attraction, bot now it includes a story about Edna Mode trying to babysit Jack-Jack.
As part of that change, the land’s roller coaster (the only one in the park), California Screamin’, became The Incredicoaster.
It’s the only Disneyland Resort roller coaster to include an inversion, and it’s one of the longer roller coasters in North America.
The ride itself is the same, which is good because it’s a unique attraction.