(at around 1h 29 mins) After Vanellope resets the game by crossing the finish line, the race track still has King Candy's logo and face from the earlier track.
(at around 1h 21 mins) Vanellope's kart has a strawberry on the front right wheel and a lemon on the front left; the rear wheels are just cookies. Best view of the lemon occurs when King Candy flips Vanellope's kart in the tunnel. When Vanellope crashes just before the finish line, the front wheels have switched sides. The lemon (now right wheel) departs during the crash and the strawberry is shown as the front left wheel.
(at around 10 mins) When Deanna begins to pull Felix onto the dance floor, she is wearing a shiny dress imprinted with leaves and flowers. When they take their places in the next shot, Deanna is suddenly in a plain pink dress, with no imprints. Then, although she remains on the dance floor for the entire shot, when Gene answers Felix in the very next shot, Deanna is suddenly with Gene by the door, and she's back in the dress with the shiny imprints for the rest of the scene.
(at around 1h 22 mins) When Vanellope crashes just before the finish line, the color pattern of her kart's six straw exhausts are different before and after the arrival of Felix and Ralph. The "after" color pattern is the correct pattern that matches the rest of the movie. The "before" color pattern seems to have the left and right exhausts swapped.
Ralph's first game in Hero's Duty happens just after the arcade opens. By the time Ralph gets to the top of the tower (which is implied to be before the next game starts by the "Quarter Alert" heard at the end of the first game), the arcade has closed.
The game Tapper is shown, and said, to be serving root beer. The original Tapper (1983) featured beer, and was co-branded with Budweiser and sold to bars. Root Beer Tapper, the kid-friendly arcade version, would appear to be seen here, but the marquee is that of the original Tapper.
(at around 1h 11 mins) When Ralph throws his medal at the screen of Fix it Felix Jr, It partially knocks the "out of order" sign down. However, some older arcade machines have Plexiglas in front of the CRT, with the CRT angled upward and away from the Plexiglas, and Fix it Felix Jr clearly uses this design. You would think that because they're "inside" the game, throwing the metal at the screen would just hit the front of the CRT tube, and not the Plexiglas on the outside of the machine.
(at around 49 mins) The mini-game at the Kart Bakery, which lasts 60 seconds, actually takes 73 seconds of screen time.
The audio description on the DVD incorrectly refers to Rancis Fluggerbutter as being female.
Per the game's designer, the player character in Tapper (1983) is not named Tapper as portrayed, but Domino Man. The character was borrowed from an earlier eponymous game; he would also appear in Timber (1984) from the same manufacturer.
(at around 1h 30 mins) Ralph says he gets a perfect view of the game Sugar Rush when he is lifted at the top of the building, as if he cannot see it from a lower position. In a previous scene, though (at around 1h 11 mins), he can perfectly see the game from a balcony. However, Ralph would be unable to watch Vanellope race from the balcony during in-game hours, like she had wanted, and being lifted by the Nicelanders is the only way for him to view Sugar Rush if there is someone playing his game.
(at around 22 mins) When Ralph doesn't appear in his game, Felix climbs off the side of the building and exits the screen. In the next shot, he is just seen exiting the light source. Evidently, the light source is wider than the screen (so Felix is still in the light but already off-screen), which actually make sense even in the real world, since the inside of the game is illuminated from various angles.
(at around 28 mins) When Ralph approaches the candy tree on which his medal is stuck, the camera shows a rising shot of the whole tree from bottom to top, then a shot looking down the tree from near the top, but neither Vanellope nor any double-stripe branches can be seen in these shots, even though they both appear seconds later when Ralph climbs the tree. However, for all we know the double-stripe branches can appear out of nowhere (since they disappear, they can also reappear, why not). As for Vanellope, she repeatedly demonstrates the ability to move at blinding speeds up and down the tree throughout the scene, so she had plenty of time to jump to the branch while Ralph was climbing the tree.
The double-striped candy branches vanish at different time intervals after being touched: 3 seconds (after Ralph first touches one), 1 second (twice, as Ralph and Vanellope race for the medal), 35 seconds (before Ralph falls into taffy), and 11 seconds (before Calhoun and Felix fall into quicksand). Evidently, this time interval is variable, rather than constant. This makes sense too, because less predictable behavior makes the game more interesting.
(at around 40 mins) When Ralph emerges from the chocolate milk after avoiding the police and devil dogs he is completely dry. He should be completely soaked. This is, however, assuming that Sugar Rush would have a realistic physics engine, or that Ralph, being a character from a different game, would be affected by it; Vanellope is pushed into the mud later on yet also remains completely dry and clean.
(at around 42 mins) When Taffyta and Vanellope are arguing, Vanellope pulls Taffyta, who glitches very slightly.
(at around 1h 16 mins) Sugar Rush only came with 15 racers (Turbo is foreign, after all), but the screen showing the leaderboard has the exact size required to show 16, as if it was designed that way.
It is assumed, from the Kart Bakery, that all of the racers' karts are made there. Yet some of the karts seen were obviously not baked; Taffyta's, for example, looks to have been machined from hard candy.
When Ralph comes out of the Diet Cola Mountain secret entrance, his body glitches.
(at around 2 mins) At the beginning of the movie, as the camera rolls away from the Fix-It Felix Jr. cabinet, the Street Fighter (1987) cabinet, 3 cabinets to the left, displays a title screen for Street Fighter II: The World Warrior (1991).
Sugar Rush was supposedly plugged in 1997. The graphics for the game appear much too advanced for a game released at that time.
After Ralph breaks her cart, Vanellope runs into her hideout. Then she is all of a sudden locked up in the dungeon.
(at around 1h 20 mins) When King Candy is banging his kart's horns against Vanellope's kart's windshield, the horns do not make any sound as they fly off the pole.
(at around 34 mins) Just before the race King Candy explains that the event is "pay-to-play". You need a gold coin, from previous winnings. This results in being unable to ever come back as a playable character, once an avatar did not win a single race. Presumingly, this way, over time the number of playable characters would get smaller and smaller up until just one character is left.
Many video games have pictures of scrapped or unused content on promotional material (or sometimes even left over in the game itself) that the developers forgot to correct before finalizing it. Having Vanellope's picture on the side of the game console would not definitively disprove that she was a mistake who wasn't supposed to be in the game.
(at around 28 mins) 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.
(at around 1h 30 mins) At the end, Ralph is talking to the other bad guys at BAD-ANON about Felix's and Calhoun's wedding as if none of them were there; he even uses the words 'you should have seen it'. Yet many of the characters from the various games across the arcade (including Zangief) were shown to be among the guests so it could be assumed that most, if not all, the bad guys were there.
(at around 56 mins) When Ralph begins teaching Vanellope to drive, he tells her that he had flown a spaceship, to which she replied, "You crashed it". But Vanellope never saw the spaceship, never mentioned it upon meeting Ralph, and she had no way of knowing if it was Ralph who crashed it.
Turbo's name was uncredited in the end credits of this film.
(at around 1h 28 mins) All of the Sugar Rush characters are seen running back into Sugar Rush once it had been reset, but they would have had no way of knowing that it was safe to return.