The mine cars commonly used in the 2nd dimension by The Resistance are the same ones seen being used by the animal agents as Agent Perry descends into his lair at the beginning of the movie. The Resistance Headquarters is Agent Pinky's lair, which is why the giant screen is pink and flowery. See more
[shackled along with his friends while being led to a large, caged, ferocious beast
I'll be honest, Ferb, I'm having a hard time putting a positive spin on this, but I guess that's life, huh? One minute you're having the best day ever, and the next you're being fed to a monster the size of a two-car garage.