Continuity mistake: Kel comes into Rigby's and sits on the counter and takes of one of his trainers, after he has been handing out fliers. He puts it on the counter so the sole of it faces the camera all the time, yet during shots it suddenly changes so that the top of the trainer faces the camera.
Kenan & Kel (1996)
4 continuity mistakes in Duh Bomb - chronological order
Starring: Kenan Thompson, Ken Foree, Dan Frischman, Kel Mitchell, Teal Marchande, Vanessa Baden
The Raffle - S3-E3
Factual error: When the Rockmmores turn the new TV on, the resulting light is impossibly bright. (00:06:20)
Kel Kimble: Aw, here it goes.
Two Heads Are Better Than None - S4-E14
Question: Who screams the second time when Kenan tries to question Kel about the first scream?
Answer: Kel.