Hyde and Go Tweet

Hyde and Go Tweet is a Merrie Melodies animated short starring Tweety and Sylvester. Released May 14, 1960, the cartoon is directed by Friz Freleng. The voices were performed by Mel Blanc.

The short is the third directed by Freleng based on The Strange Case of Dr. Jekyll and Mr. Hyde. The title is a play on the game hide and go seek.

Plot
Sylvester is sleeping on the ledge of a tall building. He is just outside the window of the laboratory and office of mild-mannered Dr. Jekyll, who is shown entering the laboratory and drinking a Hyde Formula and briefly turning into a monstrous, evilly laughing alter-ego. Sylvester hears the laughter and awakens startled, but when he looks inside the window, he sees only the re-transformed Jekyll departing the laboratory. Sylvester laughs it off and resumes his sleep.

Suddenly waking up, Sylvester chases some pigeons away for disrupting his nap. He then pursues his prey, Tweety, along the building's ledge. Tweety escapes inside the laboratory and hides in the Hyde Formula bottle. Sylvester demands that Tweety show himself, which he does now as a mean, giant bird of prey that - after years of harassment and being chased and with payback on his mind - begins chasing Sylvester.

Sylvester is frantically summoning the elevator, and he turns and looks down a corridor, and Tweety/Hyde is ambling along, laughing maniacally.

For most of the rest of the cartoon, Tweety frequently switches between his usual, innocent self (which Sylvester chases) and the evil bird-monster (from which Sylvester runs away). After several back-and-forth chases, Sylvester nabs a normal-sized Tweety. Unaware of the fact that the monster bird and his potential meal are one and the same, the cat locks himself in a small kitchen, throws the key out the window to make sure that Tweety doesn't, "...get out" and "the goon" doesn't get in," and begins to make Tweety into a sandwich. But while Sylvester is searching for some ketchup, Tweety changes back into his menacing, Hyde-like self and devours his adversary whole in a single gulp. Sylvester frees himself and tries to escape the room as he cries out for help.

Just then, Sylvester awakens... to realize that this was only a nightmare and to see a normal-sized Tweety struggling to fly to the ledge of the building. Fearing the events of his nightmare are about to come true, Sylvester is convinced that Tweety poses a giant risk to his well-being. Sylvester cries out and runs through a brick wall to escape! Two cats (variants of the cats in Birds Anonymous) observe his action and refer to it as cowardice. Tweety agrees on that.