When 99 is tied to the conveyor belt, she kicks the switch for "fast" and is transported rapidly away from the KAOS agent. But when she emerges in the store and is seen by Max, she's traveling much slower.
The clerk in the gray overcoat (who threw a basketball at Smart) was then shot in the right shoulder and falls back, with his left arm near his right shoulder, against a shelf with a green chair to his left (leaning against the end of the shelf) and gets knocked out by a bowling ball that hits his head and rolls away. Moments later, in the overhead shot, he is still unconscious but the green chair is leaning to his right (between the shelves), the bowling ball is at rest just to his left and now his right arm is clutching his left shoulder.
The boxes of electric toasters are obviously empty.
Because of the length of his hair, the stunt double for Don Adams during climactic fight in the warehouse looks nothing like him.
In the opening scene, a sign on a box of "KAOS TRAINING FILMS" has the word "accompanied" misspelled without an "i", where it says "NOT TO BE OPENED BY ANYONE UNDER EIGHTEEN UNLESS ACCOMPANED BY AN ADULT".