All preproduction work was finished for three unfinished episodes ("Succubus", aka "The Curse of Kataluna", "Turmoil 2: The Revenge" and "Doctors of Doom") when the show got canceled. These three unfinished episodes were written by Glenn Leopold (story editor/writers). According to writer Mark Lungo (who wrote the "Animato" Magazine article for behind-the-scenes of the show), Thundertruck that was used in the episode "When Strikes Mutilor" was recreated in the unfinished episode "Succubus" (aka The Curse of Kataluna).
T-Bone, if you drown, I'm gonna kill you!
Before the openings, there would be clips of the episode to air with Razor's voice saying "Today on Swat Kats..." In later years and on Cartoon Network, they stopped showing them.