Rare Acts of Petropolis is the second last episode of the second season of TUFF Puppy, is the episode after The Mansion of Fear/Twin Dog and before T.U.F.F Puppy's Bloopers.
According to me, Dudleysimpson (creator of the episode), Rare Acts of Petropolis is the equivalent of TUFF Puppy, like Legends of Bikini Bottom is the equivalent of Spongebob Squarepants, Treehouse of Horror is the equivalent of The Simpsons..and a big et cetera.
Like these special episodes of other series mentioned above, in Rare Acts of Petropolis happen things out of the ordinary, and, like Treehouse of Horror (The Simpsons), has three segments instead of two (TUFF Puppy).
The episode begins with a sinister voice saying T.U.F.F. Puppy Presents: Rare Acts of Petropolis, and then cutting the locution Dudley appears, complaining about it and asking the technician locution you change the voice on the other, but the director refuses, and begins the episode with the following segments:
Videogamed: Snaptrap, Bird Brain and the Chameleon sent Dudley to several games where you can not go out and loses
T.U.F.F. in Otherworldland: Bird Brain sends T.U.F.F. agents to a place where sent to different worlds.
Changing Bodies: Snaptrap changes his body with Dudley, but a chameleon's trap, Dudley (Snaptrap) changes his body with him.