When Wreck-It Ralph realizes he is in the Sugar Rush game he says, "This is the candy go-cart game over by the Wak-A-Mole." However, at the beginning of the movie, as the camera rolls away from the Fix-It Felix Jr. cabinet, the game next to Sugar Rush says Wak-A-Troll.
Kano is depicted as American in the conference room at the beginning, when he has been Australian since the first Mortal Kombat movie, where Trevor Goddard played him as Australian and the creators decided to change him.
At the movie's end, when Vanellope glitches out of her princess clothes back to normal, the princess clothes crumple together on the ground. They vanish instantly after and are not present in any other shots.
When Vanellope crashes into a rock in diet cola mountain,we see her spit out one of her front teeth and a gap is formed in her upper row. However, when she and Ralph leave for the race, when she speaks both her front teeth are visible.