Heathcliff and the Catillac Cats

The Siamese Twins [Heathcliff] (1x87)

Air date: Nov 15, 1984

Two Siamese ninja cats enter town and terrorize the neighborhood. Heathcliff is blamed for it. Heathcliff, with the help of Hector, Mungo, and Wordsworth, gets rid of the Siamese twins.