- The series is pretty light on the scary stuff, but there's some bits that can catch you off guard. The first appearance of a Goon in the Segar comics is legitimately scary looking, standing tall in a doorway with a pale, almost ghost like appearance, much to the shock of Popeye and co.
- Sinbad's "Boo, and my enemies run!" close up from Popeye Meets Sindbad. It's downright gruesome!
- "Wotta Nitemare" has some unsettling imagery too, especially the part where giant, laughing heads of Bluto and Olive pop up really close on the screen!
- Popeye's own eponymous eye becomes a mild bit of this when you realize it's not for show or a stylized squint—he really did lose his eye, and according to the Segar comics, he deliberately allowed his opponent to gouge his eye out! The cartoons and later installments tend to overlook that, but "I Wanna Be a Lifeguard" has Popeye use his empty eye socket as a whistle, and it's as disturbing looking as it sounds.
- In the wartime short "You're a Sap, Mr. Jap", one of the enemies Popeye fights, a japanese Naval Commander, commits suicide by downing gasoline and firecrackers in an attempt to take Popeye down with him. Popeye is visibly disturbed, and hightails it before the whole ship is blown to pieces.
- "Lost And Foundry" is this for anyone familiar with how horribly a person can die in an industrial accident.
- From "Shiver Me Timbers"Popeye: I told ya there's no such thing as ghosts.
Ghosts: OH YEAH?!?
- The film Popeye's Voyage: the Quest for Pappy has the Sea Hag turn into a horrible sea monster with giant tentacles instead of hands.
- "Happy Birthdaze" has a pretty dark ending for a Popeye cartoon. By the end of the short, Shorty has ruined Popeye's birthday and his relationship with Olive. What does the one-eyed sailor do? He murders Shorty! It's not shown, but Shorty stops singing after the gunshot and the words "The Bitter End" appear afterwards.
Nightmare Fuel / Popeye