One night, Sylvester tries again to get Tweety, but he makes a slip and falls to the floor, with one of the bird's feathers landing in his mouth. Tweety escapes unharmed, but when Sylvester sees the feather in his mouth, he thinks he has actually eaten and killed the bird and suffers much guilt as an Alfred Hitchcock-type narrator chides the cat for his "crime". Sylvester ultimately decides to return to the scene of his crime to confess, only to discover, much to his relief, that Tweety is very much alive and unhurt.
"The Last Hungry Cat" provides examples of:
- Affectionate Parody: Of Alfred Hitchcock films, and the outline/shadow of the Hitchcock-like narrator being a parody of the opening of Alfred Hitchcock Presents.
- Beary Funny: The Hitchcock-type narrator is a bear, apparently.
- Big "SHUT UP!": At the end, when the narrator quotes Shakespeare for a moral, an off-screen Sylvester shouts, "Ah, shaddup!" and throws a brick at his head.
- Blunt "Yes":Narrator: Are you nervous, pussycat?
- On CBS, the scene of a nervous Sylvester chain-smoking and drinking coffee was cut.
- On ABC, the scene of Sylvester trying to sleep by taking pills (which he not only consumes, but also rubs into his hair and under his arms) was cut, while the scene of Granny hitting Sylvester with her broom was halved; ABC has her hitting him only three times instead of the original six.
- In the past, Cartoon Network only censored the chain-smoking-and-coffee scene, as on CBS, but it also censored the scene of Sylvester downing pills as well later on, as on ABC. The two edits also applied to Boomerang airings as well.
- Broken Tears: When his guilt becomes so bad that he can't sleep, Sylvester breaks down crying, with the animation reused from Birds Anonymous.Sylvester: I can't take it anymore! I just can't! After all, I am a pussycat with normal weaknesses! Other pussycats have eaten birds! Why pick on me?! Why?!?
Narrator: Why don't you give yourself up?
Sylvester: (looking up) What was that?
Narrator: I said, why don't you give yourself up and accept the consequences?
Sylvester: (crying) Yeah, yeah, I'll give myself up! I'll throw myself on their mercy! (runs back to Granny's house) I did it! I'm guilty! I can't take it anymore! I give up! I'm the killer!
- Cranial Eruption: Sylvester's fall to the ground in trying to get Tweety results in a lump on his head. At the end, Sylvester hits the narrator on the head with a thrown brick, resulting in the narrator getting a lump on his head. When he leaves, his outline also leaves that same lump.
- The Insomniac: Sylvester is so overcome with guilt that he can't sleep.
- Interactive Narrator: Sylvester and the narrator interact with one another throughout the cartoon.
- Lemony Narrator: The narrator chides Sylvester for his crime.
- Literal-Minded: Sylvester thinks he's wanted by the law when he sees a newspaper headline: "Police Hunt 'The Cat.'" If he hadn't stopped reading too soon, he would have seen the photo of the real criminal: Harry, alias "The Cat."
- Mouth Full of Smokes: Sylvester tries to stay awake at one point by chain-smoking a bunch of cigarettes all at once.
- Off-Model: The animation of Sylvester trying to consume sedatives to sleep is taken from Lighthouse Mouse, which was directed by Robert McKimson. As such, Sylvester is briefly rendered more in the McKimson style, circa 1955 (most notably with the white tip on his tail missing), rather than the Freleng style, circa 1961.
- Pacing a Trench: As Sylvester ruminates over his predicament, he paces back and forth for so long that he actually wears the floor out. The narrator calls him out on it:Narrator: If you keep pacing like that, you'll wear a groove in the floor.
Sylvester: Shut up and mind your own busi— (falls through the floor thanks to the pacing)
- Recycled Animation: The animation of Sylvester both tossing and turning on his bed and his Broken Tears are reused from Birds Anonymous. As well, his consumption of sedatives during this same scene is taken from Lighthouse Mouse.
- Shout-Out to Shakespeare: The narrator closes the cartoon thusly: "In the words of the Bard: 'Conscience makes cowards of us all.'" Sylvester is not amused.