Audio/visual unsynchronized: In the scene in which Steve's son Derek is crying and shouting, the "Donkey Kong" sounds heard don't match the action shown on-screen.
Incorrectly regarded as goofs: The Donkey Kong cabinet that Steve Wiebe installs in his garage is a combo Donkey Kong/Donkey Kong Jr. cabinet, however the markings on the cabinet are those of a stand-alone Donkey Kong Jr. cabinet. Wiebe specially purchases and installs the "brains" (PCB) of the combo game into his Donkey Kong Jr. cabinet in the course of the movie.