Dumb Muscle: Asher has the body of a gorilla and just one brain cell.
Early-Installment Weirdness: The ultra-rare "numberless" Zbeng is very odd to those who are familiar with the later books. For once, it's not just "Zbeng", but a collection of different comics Uri Fink was making at the time.
Mood Whiplash: One story from the early 2000's involved the cartoonist trying to shoehorn himself into the cast. First as "one of the guys" (much to the dismay of the teenage protagonists), then as one of the characters' uncle (with even less success), and finally as a teacher at their school, before the characters finally intimidated him away. Gal then ponders what made him want so much to live in their fictional world. We then cut to Ouri Fink's office, where he stares, eyes full of dread, at a live-TV image of the burning World Trade Center.
Running Gag: In early stories, characters running away to join a Trappist Monastery.
Teen Genius: Yaron can make teleporters, potions and robots and he's only 16!
Terrible Interviewees Montage: Zbeng! 1 starts with all the characters getting interviewed by Uri Fink to be the main character in his new comic and getting rejected. In the end Uri realized that comic should be about ALL of them.
The Pollyanna: Despite living in a cardboard box, Asaf is easily the happiest member of the cast.
Totally Radical: An Israeli version of that is clear in 90's stories
Twin Switch: Gal makes Yaron pull it off from time to time, it never works.
Sadist Teacher: Mrs Zaafani. By her own admission, her only joy in life is screaming at people.
Soap Box Sadie: Sigal is more than a little devoted to her political ideals.
Speaking Like Totally Teen: In one story, the adults started talking to the teenagers with then-current slang, to communicate with them better. Results... weren't pretty
Status Quo Is God: To the point where changes to a character's haircut are treated like a big deal.
Unusually Uninteresting Sight: Even without counting numerous instances of All Just a Dream, the cast has encountered aliens, demons, angels, outright miracles from God, time travelers, and more. This doesn't really seem to shock them.