Continuity mistake: In many of the game sequences players are simultaneously on the ice and on the bench. It happens most often with the kids that are not focused on so much, like Guy and Connie, but also sometimes with players like Charlie and Adam. Sometimes it's hard to tell if it is a montage and there has been enough time for the players to change, but at other times it's blatant. For example when Adam is hit on the wrist by the Iceland player you see Connie stand up on the bench and yell, but in the very next shot she's standing next to Adam asking if he's okay. And in the street hockey scene, when the puck is thrown back after hitting the car and Charlie scores a goal you see a reaction shot of the team celebrating. Charlie is visible at the bottom of the screen kneeling and cheering.
Continuity mistake: In the final game, Coach Bombay calls a time-out and supposedly that is where the switch of shirts between Russ and Goldberg takes place, so that Russ can fool the Iceland team and take his "knucklepuck" shot. However, when the timeout is called there is an overhead shot of all the Ducks, and you can see Goldberg in the center, facing Bombay, and Russ on the left of him (you can tell it's them buy the helmets and names on the shirts). After a shot of the Iceland team, it goes back to another overhead shot of the Ducks leaving to go back into play. None of the Ducks have changed position or barely moved, not even Russ and Goldberg, who need to move and trade shirts, which indicates that the shirt trade never happened.
Continuity mistake: In the first movie and most of this movie, Fulton Reed's jerseys say "Reed" on the back, which they should since that is his last name. However, near the end of the movie, when the team receives their Mighty Duck jerseys with the new logo, you can see that Fulton Reed's new jersey says "Fulton" on the back, not "Reed" - they've changed to his first name for some reason.
Continuity mistake: At the end of the final game when Adam gets ready to take his penalty shot they show a full body shot and it is clear that he is wearing standard CCM skate blades. There is a hole at the toe of the blade. When he starts his penalty shot, they show a close up of his skate kicking the puck and now he has Tuuk (that's the way you spell it) blades because there is no hole at the toe. Therefore, it's obvious a double is used to take the penalty shot.
Continuity mistake: When Stansson and Coach Bombay have their 1 vs 1 match, in the beginning Stansson passes Bombay, but one second later Stansson has dropped quite a bit back.
Continuity mistake: There is an exterior shot of the stadium where the Ducks play the championship game, and the parking lot is empty except for a few cars. Now if there was a huge game going on inside, with thousands of fans present, wouldn't there be a bit more traffic?
Continuity mistake: During the game against Trinidad, when the Trinidad player scores the goal, the shot of the player shooting shows Goldberg on the left of the net and extending his stick/right pad to block the goal with the right/center of the net wide open. However when the shot changes to the back of the net, Goldberg is now to the right and has his glove extended with the left/center of the net wide open.
Continuity mistake: In the first game against Iceland, the score is supposed to be 0-2 Iceland. After wu comes back, the one bash brother slams the chair, in the next shot from behind the net, you can see it's 0 - 5 Iceland.
Continuity mistake: At the end of the film they are carrying the US flag around the ice. As they wave it, it wraps around the pole, but in the next shot it is straightened out again.
Continuity mistake: When the Ducks are fooling around with the beach ball and the Iceland team shows up, the ball rolls away to the left of Stansson, but then in the next shot it is at his feet, so he can then pick it up and pop it.