Ben 10: Alien Force
Ben 10 Returns: Part 1 X = Ben + 2 Unearthed Ghost Town
Ben 10 Returns: Part 2 Darkstar Rising War of the Worlds: Part 1 Trade-Off
Everybody Talks About the Weather Alone Together War of the Worlds: Part 2 Busy Box
Kevin's Big Score Good Copy, Bad Copy Vengeance of Vilgax: Part 1 Con of Rath
All That Glitters Save the Last Dance Vengeance of Vilgax: Part 2 Primus
Pier Pressure Undercover Inferno Time Heals
Max Out Pet Project Simple The Secret of Chromastone
Be-Knighted Grounded Vreedle, Vreedle Above and Beyond
What Are Little Girls Made Of? Voided Singlehanded Vendetta
The Gauntlet Inside Man If All Else Fails The Final Battle: Part 1
Plumbers' Helpers Birds of a Feather In Charm's Way The Final Battle: Part 2


Ben 10 Returns: Part 1

  • When Ben passed Sandra, her hair was brown instead of blonde.
  • When Ben first watches Max's recording, his image changes to a DNAlien for the last second. But this doesn't occur when he views it again later.
  • When Ben dodges the DNAlien, as he reaches for his Omnitrix, his left arm does not have a sleeve for a few frames.
  • The Omnitrix colors change in different scenes.
  • When Ben puts the Omnitrix on his wrist, it is smaller than usual.
  • After Omnitrix calibrating Omnitrix is bigger, but after Ben try to activate him, Omnitrix is on normal size
  • When Ben was cycling through his new aliens, the Jetray hologram had no legs.
  • Swampfire was somehow able to sniff his armpit despite lacking a nose.
  • When Kevin examines a gold goblet in the castle, it's design is different than before.

Ben 10 Returns: Part 2

  • In several scenes, Humungousaur has fangs.
  • In one scene, Gwen didn't have her stockings.
  • In one scene, Humungousaur's Omnitrix symbol was gold instead of silver.
  • In one scene, Ben's jacket says "1" instead of "10".

Everybody Talks About the Weather

  • Gwen wasn't wearing stockings when she was tracking Alan.
  • When Alan tries to become an alien in the ice building, his Plumber Badge is seen on his chest for a split second although Sheriff Mason took it away earlier. But when he reverts to his human form, the Plumber Badge is gone.
  • When Alan breaks out of the cell he has his Plumber Badge on his chest, but it was sitting on the desk where Officer Wells was sleeping.
  • When Gwen tells Ben and Kevin about the hole in the ice building, her stockings are missing for one scene.
  • While the DNAliens are breaking through her shield, Gwen's entire jaw disappears for a few frames before returning to normal.

Kevin's Big Score

  • When Ben looks at the photo, his jacket stripes are gone.
  • During Big Chill's pursuit of Kevin, Kevin uses the same button to activate all the Rust Bucket's mechanisms.
  • When Kevin falls off a cliff, there is no fan in the Rust Bucket.
  • In one scene, Ben's jacket stripe is painted wrong.
  • When Ben and Kevin are quarreling, Ben's jacket stripes are missing.
  • In one scene, Argit's spike turns green.
  • In the scene when Ben wakes up after being tranquilized and stretches, the Omnitrix is missing from his wrist.
  • In one scene, Ben's jacket stripes are gone.
  • Big Chill turned invisible in this episode, which, according to Dwayne McDuffie, was just an error.

All That Glitters

  • The first time we see Michael's house, he has a large fountain in his front yard. The second time we see it, the fountain is gone.
  • During the talk with Michael, Ben's jacket stripes disappear several times.
  • In one scene, Trina has no socks.
  • Chromastone's name is spelled as "Chromostone" in the credits.

Pier Pressure

  • When Brainstorm turns back to Ben, the flash was white instead of green.

Max Out

  • When Big Chill's hologram is shown, his wings are open.
  • When Ben turned into Jetray and said his name, Jetray's mouth doesn't move.
  • In one scene, the Highbreed has five eyes instead of four.


  • When the Dragon is shot by the jets and starts falling, he lacks his translator.
  • When Kevin talks to Ben in the car, part of his sclera is of the same color as his skin.
  • After Ben transforms into Spidermonkey, his shoulders are dark blue.
  • When Spidermonkey shoots his webbing, his tail flashes with a blue light.
  • When Ben was talking to the Dragon, his jacket had an error in the color of its right sleeve stripe.
  • In one scene, Gwen didn't have her stockings.
  • In one scene, Gwen's eyes are light green.
  • Humungousaur wasn't listed in the ending credits

What Are Little Girls Made Of?

  • When Gwen is getting up from throwing a rock into the water, Gwen's leg and arm are shown in front of Ben's head, when he is in front of her.
  • In several scenes, Ben does not have the Omnitrix on his wrist.
  • In a picture of young Ben and Gwen in a room, the Omnitrix is on Ben's right wrist.
  • When Ben and Kevin join Gwen on the roof, Kevin remarks that they can't fly, even though Gwen can't fly, she just used her mana constructs to get on the roof.
  • When Verdona dances, there are no dishes on the table.
  • In one scene, Spidermonkey lacks an arm.

The Gauntlet

  • When Jetray's hologram is shown for the second time, he is in an upward flying position.

Plumbers' Helpers

  • Ben states that neither him or Gwen know how to drive, although in Paradox, he states that Max taught him how to.
  • In several scenes when Manny and Helen are driving, one of Manny's blasters is missing.
  • In the first image of the trio that Manny and Helen look at, Gwen is too tall and is standing away from Ben and Kevin, who are also both looking at her.
  • In the next image Gwen is closer to Ben and Kevin, but the cuffs on her sleeves are blue instead of white. Also, in the same scene, Ben is drawn at a different angle, Gwen's pose is slightly changed, and all three of them are looking at Manny and Helen as if facing them.
  • In one scene, Manny's back is drawn incorrectly.
  • When Manny is shooting at Swampfire, his fingers don't move to pull the trigger of his guns.
  • When Ben gives back Helen the database, the Galvanic Mechamorph looks like Upgrade and has an Omnitrix symbol.


  • In one scene, one Paradox has a black shirt.
  • When Humungousaur stops Hugo from being pulled into the vortex, he grabs his leg. In the next shot, he is seen holding him by the lab coat, and in the shot after that he is holding his leg again.
  • When Paradox meets the elderly Hugo, he says he hadn't seen Hugo in 100,000 years, even though he saw Hugo mere minutes ago.

X = Ben + 2

  • In some scenes, Milleous' face is colored differently.
  • In one scene, the Omnitrix symbol is missing from Alien X's body.
  • When the team runs into Milleous and Raff, the background between Kevin's hair is white.
  • In one scene, the mark on Kevin is black.
  • When SevenSeven shoots Swampfire, the latter has five fingers on each hand instead of four.
  • When Swampfire defeats the Incurseans, his face is red.
  • Frolic was credited as Bandaged Warrior, even though his name was mentioned in the episode.

Darkstar Rising

  • For a short time, when Gilhil was talking to Kevin, the red button on his suit disappeared.

Alone Together

  • During the time on Turrawuste, Ben was noticeably taller than normal.
  • In one scene, the Omnitrix's colors are inverted.

Good Copy, Bad Copy

  • In one scene, Gwen had red eyes.
  • When Albedo dodges Goop's attack, the stripes on his right shoulder are black.
  • When Albedo transforms into Humungousaur, the stripes on his right shoulder are missing.
  • Both Big Chill and Brainstorm open their mouths.
  • In one scene, Brainstorm's cranium plates are missing.
  • Chromastone's mouth doesn't move when he cries out his name.
  • In one scene, Albedo's Omnitrix is seen on his right wrist rather than the left.
  • Albedo's shirt is black instead of white in two scenes, first when he says "He's here!" before Azmuth arrives, and again at one point when Albedo is in his cell.

Save the Last Dance

  • Big Chill is seen pushing the order button at the Burger Shack multiple times. The waitress comes out soon with his order, before being scared away. However, Big Chill never spoke into the speaker, and only pushed the button.
  • When Big Chill turns away from the metal Burger Shack mascot's statue before flying away, the mascot is no longer visible (even though at the angle shown, it should have been).
  • When Big Chill was leaving after drinking the molten metal, his Omnitrix symbol was sideways.
  • When Big Chill drinks the molten metal his teeth do not separate but the liquid gushes in rapidly.
  • The sign at Gwen's school says that a summer dance is being held even though Ben mentioned earlier in the episode that it was a spring formal.


  • In one scene, Swampfire's eyes were all green.
  • In one scene, Ben doesn't have the 10 on his jacket.
  • When Goop rescues Cooper, his Anti-Gravity Projector somehow appeared in the room with him despite the door being closed.
  • Big Chill was listed in the ending credits instead of Swampfire.
  • On the Alien Force Volume 4 DVD, Cartoon Network Ripple logo is not included.

Pet Project

  • In one scene, Jetray misses his stripes.
  • In that same scene, Jetray didn't have an Omnitrix symbol.
  • When Ship transforms back, Swampfire's face is green.
  • When Gwen gets knocked out after fighting Ship and Kevin checks up on her, they are to Swampfire's right. When they approach him moments later, they come from in front of him.


  • Although it is mentioned in Good Copy, Bad Copy that Ben's left eye twitches when he lies, it does not twitch when he lies to his parents about fighting the Highbreed.
  • In one scene, Gwen's sleeves are all blue.
  • When Gwen calls Echo Echo, her nose is missing.
  • When Ben's parents confiscate his phone, the TV is missing from his room.
  • When Kevin is facing the Highbreed for the second time, some of the black patterns are missing from the Highbreed's shoulders.


  • When Ben was in his room talking to Gwen about his doll house, his hair is darker than usual.
  • In one scene, the colors of the 10 on Ben's jacket were inverted.
  • In one scene, Manny does not have his prosthetic hand.
  • Chromastone's lasers are green instead of multi-colored.
  • Brainstorm's lightning is blue instead of yellow.
  • Max should not have known about Swampfire as Ben had yet to transform into him in front of Max.

Inside Man

  • When Chromastone gets thrown out of the truck and says "DNAliens!", his mouth does not move.
  • When Kevin absorbs the truck, he gets coated with stone instead of metal.
  • Gwen states that Max Out took place in Los Soledad, which is untrue as the episode in question took place in Santa Mira.

Birds of a Feather

  • When Goop and Simian dodge the cops' shots, Goop's Omnitrix symbol is missing.
  • Simian called his planet Arachna.
  • When Big Chill unfolds his wings, his chest and stomach are black.
  • When Ben enters the chamber where the crystal is, he is no longer wearing his jacket and it is no longer seen for the rest of the episode.
  • The Highbreed has six eyes in one scene.


  • When Kevin runs towards Tiny, his right eye is all white.
  • After Echo Echo transforms back, Ben's skin was white around his right eye.

War of the Worlds: Part 1

  • When Professor Paradox teleports himself, Gwen, and Kevin, he also seems to have taken Azmuth despite him wanting to talk to Ben.
  • Alan is not present when the team recruits Cooper.
  • Before turning into Cannonbolt, Ben is facing his ragtag army, but after the transformation, he's facing away from them.
  • Just after Cannonbolt's transformation, Gwen is not wearing her stockings.
  • When DNAliens surround Professor Paradox, Azmuth is next to him. But after he stops time, Azmuth is gone. Then, Azmuth is shown running.
  • When Cannonbolt reverts the DNAliens to human, his back is white instead of yellow.
  • When Way Big lifts the Jump Gate out of the ground, he has five fingers on each hand rather than four.
  • Cannonbolt's name is spelled as "Cannon Bolt" in the credits.

War of the Worlds: Part 2

  • In some scenes, Brainstorm's body isn't rendered properly, as his legs seem to be overlapping his neck.
  • Brainstorm's vomit is originally the same color as his brain. His lightning is also blue.
  • Brainstorm vomits on Azmuth, but in the next scene, Azmuth is no longer covered in vomit.
  • In one scene, Kevin doesn't have the absorption.
  • At the end of the episode, after the Omnitrix reboot, Ben said "Aw man, I don't recognize any of these guys!", making it sound like he had unlocked a whole new set of aliens. However, he only had unlocked Lodestar. Also, no holograms were shown, so Ben wouldn't see any aliens.

Vengeance of Vilgax: Part 1

  • After Gwen washed off the acid from Kevin's face, his arms were no longer metal.
  • Right before Ssserpent gets hit by Cannonbolt, his chest is green for a split second.
  • Cannonbolt was more brightly-colored than usual after he defeated Ssserpent.
  • When Max calls Ben, Cooper is shown injured, even though he didn't get hurt in the fight.
  • While Azmuth was talking to Ben through the Omnitrix before the hack, it's faceplate is like the original Omnitrix's faceplate. Also, it had grey colors.

Vengeance of Vilgax: Part 2

  • After Kevin shouted at Ben, Ben's Omnitrix's colors were reversed.
  • When Ben is about to transform into Brainstorm, his hand isn't on the spider web.
  • Brainstorm's lightning is blue instead of yellow.
  • When Ben is captured by Goop and activates the Omnitrix, Goop's body stretches farther than it should have, extending with the hologram instead of just the dial.
  • When Vilgax first hit Jetray in the fountain, his lips were green.
  • When Ben transformed from Big Chill to Humungousaur (being in his largest form), Vilgax was about the size of Humungousaur's head, but in the next scene Vilgax was about a quarter of Humungousaur's size.
  • After Vilgax shot Humungousaur, his design was reversed.
  • Before Chromastone blasted Vilgax, his eye was different.
  • When Vilgax was changing his sword into crystal form his torso was red instead of black.
  • When Diamondhead was shooting his diamond projectiles the third time, Vilgax's appearance is reversed.
  • When Diamondhead shot diamonds the first time, he only has three fingers instead of four.
  • When Diamondhead used the three big shards, his eyes were wrongly placed.
  • When Ben told Vilgax to leave, there were diamond remains behind him. In the next shot, there was nothing behind him, after which, the remains reappeared.
  • When Ben wasn't sure what happened to Chromastone, the sides of the Omnitrix were pasted and reversed in color.


  • In one scene, the Holo-Viewer is green.
  • In one scene, Vulkanus didn't have his drill arm.
  • Gwen's shield was cracking, but appears completely intact in the next scene.
  • When Vulkanus speeds up the countdown, Spidermonkey's chest is light blue.
  • When Ben turned into Jetray, it showed the transformation sequence of Humungousaur, the alien form Ben had chosen. It also shows Ben transforming, even though he was Spidermonkey when he transformed and did not transform into Ben between transformations.


  • When Spidermonkey swings around the pole, the end of his tail is cut off.
  • When Kevin gives Argit the red guns, most of his face is rock.
  • Even though, the Red Leader used his monocle to strengthen the flashlight's light, he still had one on his face.
  • After the statue collapsed, Way Big had sky blue eyes.
  • When Gwen tells Kevin to grab her hand, she is actually shot.
  • After the team leaves the planet Kevin has less black around his eyes.

Vreedle, Vreedle

  • When Echo Echo screams "Wall of Sound!", the DVD's closed captioning says "One, two, three!".
  • When Ben, Kevin and Baz-l land, Gwen's mana forcefield surrounding the Vreedle Brothers isn't there. When the door opens, it re-appears.


  • When the boys activated the Omnitrix's transformation into Big Chill, they simply tapped the faceplate rather than pressing it down. Ben was shown to attempt this in previous episodes, yet nothing worked.
  • When Swampfire attacked the Vulpimancers, the leader didn't have its back stripes.
  • When Julie first shows Ben's hand to Gwen and Kevin, her tennis racket is in the middle of red unit it's lying on, but for the rest of the scene, it's handle is sticking over the edge of the unit.
  • For a second, the Null Guardian's saliva is blue instead of green.
  • Before Diamondhead falls of the bridge, his voice is different.
  • When Sunder jumps at Ben, part of his hair disappears. Also, Ben's white stripes are on the wrong shoulder.
  • When Gwen and Julie come to hug Ben, Julie's the same height as Ben and Gwen.

If All Else Fails

  • The Highbreed Tree Monster's height changes throughout the episode.
  • The Highbreed officer appears not to have been affected by the Omnitrix wave in War of the Worlds: Part 2.
  • When Ben woke up, he didn't have the 10 on his jacket.
  • After Seedling 2 reported in, Seedling 3 (via Max) reported to the Highbreed that five Seedlings were present. However, when Max had shown up, four other Seedlings were already present and Seedling 2 did not show up until after Seedling 3 did, meaning that there were six Seedlings and not five.
  • When Spidermonkey runs up to Gwen, his tail is shorter.
  • When Gwen says, "A Highbreed?", her mouth moves right before her voice is heard.
  • When Ben transforms into Humungousaur, he is already at maximum height and has his Stegosauride features.
  • Before Humungousaur reverts, he seems to be much bigger than usual.
  • When Kevin ejects from the car, his legs are cut off for a split second.
  • When Ben selects Diamondhead, the hologram is colored.
  • When the Highbreed officer flew into the Highbreed Tree Monster, after the scene where they show Reinrassig III and the soldiers, the Highbreed officer was with them.
  • Before his death, the Highbreed officer had Reinrassig's design.
  • When the Highbreed Tree Monster was about to fall down and the Highbreed officer tells Ben's team to gather all the people and get out, only Ben's team got out and they didn't gather all the people.

In Charm's Way

  • In one scene, Gwen's eyes are light green.
  • When Ben is dialing an alien, the alien that is dialed up is Goop but for a split second the alien that is dialed up is Echo Echo and then it returns back to Goop being dialed up.
  • Charmcaster has blue eyes for most of the episode.
  • After Ben turns into Diamondhead, the banana peel disappears from his head.
  • When Ben tries to go alien near the planetarium and sees the Omnitrix recharging, the dial of the Omnitrix is facing him from his perspective, but in the next scene, it's sideways.
  • Just before Charmcaster teleported after stealing Gwen's powers, for a split second Charmcaster's mouth was missing.
  • A few seconds after the moonlight shines on her, the color of Gwen's hair is darker except for her ponytail.
  • When Charmcaster turned into Caroline, her hair color is on the very top of her forehead in some scenes.
  • Gwen had six fingers when she was outside, near the planetarium.
  • In one scene, the giant Mr. Smoothy's straw is a darker red.

Ghost Town

  • When Zs'Skayr turned the residents of Vilgaxia into Ectonurites, they had the same appearance of the sun-shielded Ghostfreak from the first season of the original series. However, the Ghostfreak minions were harmed by light, even though they wore the same suit that rendered Zs'Skayr immune to light in the original series.
  • Despite the fact that the Omnitrix should prevent possession by Ectonurites, Zs'Skayr was still able to possess Ben.
  • When Ben sends Vilgax to Zs'Skayr as a distraction, while Zs'Skayr is looking off of the balcony, his eye is green, but when he turns around and replies to Vilgax, his eye is purple.


  • When Ben turns into Jetray, the two black stripes on his shoulders are missing for a few frames, just before he picks Gwen up from the ground.
  • When Ben says to Darkstar, "You may look human again," his mouth doesn't move.
  • When Swampfire appears, his Omnitrix symbol looks flat and lacks the rim.

Busy Box

  • Before Kevin pulls over, Gwen's hair is brown like Ben's.
  • When Humungousaur falls onto his back, the Omnitrix symbol's sides were the same color as his skin.
  • When Humungousaur falls on Kevin's car, he damages it, and the Naljian Destructor as Robot Gwen shoots mana which hits the car in multiple areas and all its surroundings, but when the Vreedle Brothers land, the car is in perfect shape and there is only one mana disc stuck to it.
  • Right after the Naljian Destructor yells, "Attack!" it's Spidermonkey arms are missing.
  • Right before the Naljian Destructor falls over, it's lower body disappears and it's Spidermonkey arms turn green like Swampfire's.

Con of Rath

  • When Rath tries to pull the Omnitrix off his chest, the bottom of his mouth is black.
  • When Kevin goes to negotiate with Vulkanus instead of Rath, the fur under Rath's chin is orange instead of white.


Time Heals

  • When the Stone Creatures destroy Gwen's house door, Gwen flees, but the door is intact when the exterior is shown.
  • Charmcaster had blue eyes when they should have been purple.
  • When Gwen frees Spidermonkey, she is facing the wall behind him and he has his back to it, but in the next scene, they have both turned around.
  • When Swampfire shoots the ceiling above Hex, it's intact, but when Hex came in, it was open by Gwen's carving.
  • When Ben is about to transform to battle Hex and Charmcaster, no holograms appear on the Omnitrix.

The Secret of Chromastone

  • Brainstorm's hologram lacked the brace.
  • When Sugilite said "Not Ben", his mouth didn't move.
  • Kevin's body was reciprocated twice.
  • When Sugilite was talking to Ben at the end, he said "I am in your debt, as are all Crystalsapiens", instead of Petrosapiens. However, according to Dwayne McDuffie, Sugilite "knows a secret".
  • When Ben is about to turn into Diamondhead, Gwen's eyes are doubled.
  • At one point while Diamondhead is carrying the Petropia Back-up Crystal, it's pink instead of red.
  • All of the Petrosapiens in the crowd appeared to be adult males and had Chromastone's body texture.
  • In a scene, Sugilite's eye was on his forehead.
  • Tetrax acted as though he hasn't seen Petropia after it's destruction when in fact he technically did see it again as was shown in Ben 10: Destroy All Aliens.

Above and Beyond

  • When Pierce was fighting Goop, he broke a single shoulder spike off and threw it but when he threw it and it went through Goop it showed that he broke off two.
  • When Goop made the tower collapse, Pierce's eyebrow was white.
  • When Manny fires his blasters at Ben and Ben kicks them away, only one blaster falls to the ground but both Manny's hands are empty. Also Ben comments that Manny no longer has his blasters despite Manny still having two others in his lower arm holsters.
  • Somehow Helen knew Manny fought Rath, even though she wasn't around when the fight happened.
  • When Humungousaur chases Pierce, he smashes the airlock ledge that Pierce leaps over which dents and cracks the ledge. However, in the next scene, the ledge is shown to be intact.
  • Alan, Pierce and Helen gave their badges for the self-destruct of the ship, but when Pierce is placing the last one, Alan's badge is still on his chest.
  • The trajectory of the satellite shown on the monitor would not have it crash anywhere near London.


  • When Kevin left, half of Ben's hair was darker.
  • When Ragnarok destroyed the engine coupling of the ship that Max and Devin were in, the ship should have kept going at the same speed due to inertia and lack of friction, but it stopped completely.

The Final Battle: Part 1

  • In one scene, when Myaxx was talking to Azmuth, her neck was not covered by her clothing.
  • When Albedo puts the Omnitrix core into the Ultimatrix, the wrist couplings are not there, but instead his arm is there, But when the symbol changes from green to red, the wrist couplings are there.
  • After Albedo passes Lodestar, Humungousaur and Echo Echo's holograms on the Ultimatrix, the couplings were silver and so was the DNA scanner.
  • When Gwen tries to remove Ben's shackle, Ben's arm is next to his body on the next shot.
  • The shackle on Ben's wrist keeps disappearing.
  • In one scene, The Omnitrix is missing from Ben's wrist
  • Kevin is shown to be wearing his seat belt when he crashed and even just before Albedo pulled him out of the car. But when Albedo does pull him (and throw him) out of the car, there is no resistance (not even a stretch) from the seat belt.
  • After Diamondhead shoots Kevin in the back with diamond shards, he has the others in his back, then, after he charges Albedo with a crushed up car, the other shards are not there, nor are there any holes from them.
  • When Swampfire shoots methane gas out of his hand, he has five fingers instead of four.
  • When Albedo is going after Max, Spidermonkey comes in through the roof of the Rust Bucket, but when he turns into Rath and busts through the side, the hole on the roof is no longer there.
  • When Albedo was about to turn into Humungousaur, the Ultimatrix looked like it's an Omnitrix with a red color scheme.
  • When Albedo transforms into Ultimate Humungousaur, the spikes on the Ultimatrix symbol don't appear until after he gets fully consumed by the red light.
  • When Vilgax grabbed Kevin, he had no lips.

The Final Battle: Part 2

  • When Vilgax turns his Bioids into Humungousaur, they do not transform all at once but instead group by group.
  • When Max stopped the Rust Bucket, there were no stripes on it.
  • When Ben activated the Ultimatrix's self-destruct mode, he said "Omnitrix self-destruct" instead of "Ultimatrix self-destruct".
  • When Ben put on the Ultimatrix the watch shrunk over his clothing, when he lifted up his arm it was under his clothing.
  • When Vilgax walked away from Albedo who was dogpiled by the Humungousaurs, four of the Humungousaurs didn't have the Omnitrix symbols on them.
  • Max should not have been able to save the teleportation spell's page in Gwen's Spellbook because he is not a magic user and does not know how to read magic.
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