34497a3fe0ef52949a1ba8e99894ed69 This article belongs to the Classic Continuity

Good Copy, Bad Copy is the sixteenth episode of Ben 10: Alien Force.


The Forever Knights run into their castle, fleeing from something chasing them. They seal the entrance and the thing breaks in, revealing itself to be Humungousaur. He crushes the Knights, ruining their castle, and proceeds to grab a Forever Knight. He transforms back into normal and asks the knight: "Where is Ben Tennyson?"

GCBC (170)

Albedo pretending to be Ben

Gwen and Kevin use a piece of Ben's wreckage in order to track him to the castle, which has been torn to pieces. They see Jetray flying away and doesn't answer to them calling. A Forever Knight then tells them that Ben has attacked three of their castles, as well as a hive of DNAliens. Kevin doubts it, thinking Ben wouldn't go on missions without them.

Kevin and Gwen return to Ben's house and find Ben studying with Julie. He doesn't understand what they mean, and then Kevin points out that he isn't lying because Ben's left eye twitches when he lies. Ben realizes Julie ate all the chili fries and goes to Burger Shack to get more. The next scene shows Ben getting a pack of chili fries and leaves with terrible behavior, then another Ben gets a pack of chili fries and leaves with good behavior. When the second Ben gets out, he transforms into Big Chill and flies off.

Once Kevin and Gwen see and chase him, Ben transforms into Big Chill and chases Kevin and Gwen. The second Ben attacks another Forever Knight castle, before Kevin and Gwen arrive and help him defeat the Forever Knights, before they question him. Big Chill burps and transforms back into normal, claiming he is Ben. Big Chill arrives and transforms back into normal, and the second Ben reveals himself as Albedo of the Galvan. He then claims himself builder of the Omnitrix and that he must have it back.

Ben is suspicious, thinking that his Omnitrix was the only Omnitrix in the universe, and that a Galvan named Azmuth built the Omnitrix, as he saw in Ben 10: Secret of the Omnitrix, but Albedo claims that Azmuth is a liar. Albedo demands that Ben returns the Omnitrix, saying it is incomplete and has malfunctions, which could rip a hole in the fabric of the universe. Thinking he could be a Highbreed trying to trick him into losing the war, Ben tries to convince Albedo to show his face, but Albedo reveals he is stuck in Ben's human body because of his DNA fusing with Ben's due it being the default in the Omnitrix and being linked to his copy. When Ben asks how to remove the Omnitrix, he notices Albedo's twitching left eye and refuses. Albedo transforms into Jetray, grabbing Ben and taking him away. Ben transforms into Humungousaur in response. Kevin and Gwen combine their powers to attack Jetray and Humungousaur grabs him. Jetray manages to escape, but Gwen can track him because of the mana he left.

Gwen tracks Albedo to a computer factory. Ben leaves Gwen and Kevin while trying to surround Albedo, and Kevin tries to make sure which one is Ben by putting an X on his cheek, calling him "Ben X", but Ben erases it. Albedo arrives in the form of Goop, tricking Gwen and Kevin. When Ben arrives, Albedo catches them in packing foam.

Ben transforms into Goop, attacking Albedo. Albedo transforms into Humungousaur and defeats Goop. Goop transforms into Swampfire (Ben) and defeats Negative Humungousaur (Albedo) by throwing mud in his eyes. Meanwhile, Gwen tries to free Kevin. Negative Humungousaur transforms into Big Chill and freezes Swampfire. Swampfire transforms into Brainstorm and uses his electricity to attack Negative Big Chill, who transforms into Echo Echo (Albedo) and splits into six, using his sonic blasts to defeat Brainstorm. Brainstorm transforms into Jetray and destroys 4 of the Negative Echo Echos, Negative Echo Echo transforms into Spidermonkey and traps Jetray in a web. Jetray knocks Negative Spidermonkey away and transforms into Chromastone, breaking the web. He attempts to attack Negative Spidermonkey, but he transforms back into Ben when the Omnitrix times out. Negative Spidermonkey transforms back into Albedo and he tries to punch Ben, but their Omnitrixes link, damaging Albedo's human form by sending out an energy pulse.

GCBC (522)

Azmuth's debut in Alien Force

Azmuth appears and reveals Albedo was his assistant who created an inferior copy of the Omnitrix. Albedo believed Ben was unworthy to have the Omnitrix and wanted it for himself to restore his Galvan form. Azmuth states that the Omnitrix is beyond him and could have doomed everyone. Azmuth takes and disables Albedo's Omnitrix, trapping him in his human form as punishment for his arrogant act of rebellion and imprisons him in an unknown location. Before leaving he reveals that someone else besides him thinks Ben is worthy of the Omnitrix.

In the next morning's test, Ben gets a C+. He thinks Azmuth not letting Albedo transform back into his Galvan form wasn't a good punishment, but in a cell, Albedo disagrees. He vows that he will be free and will make Ben pay, but until that day, he demands chili fries in his cell.

Noteworthy Events

Major Events

Character Debuts

Minor Events

  • It is shown that whenever Ben tells a lie, his left eye twitches.



Aliens Used

By Albedo

By Ben



(talking to Forever Knight)
Humungousaur (Albedo): Answer me, where is he?
Forever Knight: (confused) Why ask what you already know? Are you testing us?
Humungousaur (Albedo): (pins the Forever Knight against a wall) I test your will to live. Now, for the last time...
(Changes back to human form)
Albedo: ...Where is Ben Tennyson?

Quotes Right


Big Chill (Ben): (lands and talks to Gwen and Kevin) You left me. (sees Albedo and transforms back)
Ben: And uh, who's your good looking friend?
Albedo: Ben Tennyson? A most difficult creature to find; but I must see you. I am Albedo of the Galvan.
Ben: A Grey Matter? (looks at him) Kinda tall.

Quotes Right


Ben: Since you built the Omnitrix, tell me how it comes off.
Albedo: (confused) Yes, I trust you are versed in the practical applications of eight dimensional quantum gravity monopoly equations. (silence)
(Albedo's left eye twitches)
Ben: It really does twitch when I lie.
Kevin: Told ya.

Quotes Right


Chromastone (Ben): Ahh! (reverts into Ben)
Ben: Uh oh!
Spidermonkey (Albedo): I told you! (screeches) You have drained your Omnitrix. Whereas mine...
(transforms back to Human form)
Albedo: I don't need an Omnitrix to destroy you!
(both attempt to punch each other and the Omnitrixes link)

Quotes Right


Azmuth: Albedo, through your arrogant act of rebellion, you have proven yourself a lesser being. (Azmuth detaches Albedo's Omnitrix) You shall remain as you are in a prison of your own making.
Albedo: No, you can't!
Azmuth: I have.
Albedo: I hate you! (Albedo gets teleported away)

Quotes Right


Ben: (shows Gwen his test) C+! And you thought I wasn't really studying.
Gwen: I'm sorry. The suspicious circumstances made me... suspicious!
Kevin: And I'm sorry I thought it was you kicking butt.
Ben: Fair enough... I suppose. Don't know how much I like Azmuth not letting Albedo turn back. Like that's a punishment. Being me isn't so bad. (slurps his slurpee)

Quotes Right

Naming and Translations

Language Name Origin
French Double Maléfique Evil Copy
Hungarian Jó másolat, rossz másolat Good Copy, Bad Copy
Polish Dobra kopia, Zła kopia Good copy, Bad copy
Portuguese (Br) Imitação Barata Cheap Imitation
Spanish (HA) Buena Copia, Mala Copia Good Copy, Bad Copy
Spanish (Spain) Copia Buena Copia Mala Good Copy Bad Copy


Voice Actor Role(s)
Yuri Lowenthal Ben Tennyson
Ashley Johnson Gwen Tennyson
Greg Cipes Kevin Levin
Dee Bradley Baker Swampfire
Big Chill
Echo Echo
Jeff Bennett Azmuth
Vyvan Pham Julie Yamamoto
Greg Ellis Forever Knight #1-2
Robert David Hall Forever Knight #3


  • The title of the episode is based on the "Good cop, bad cop" routine used by the police.


  • Like Ben, Julie likes chili fries too.
  • Julie is shown to be a clever student in Physics when she gets an A whereas Ben is shown to be a below-average student as he gets a C+ as a "good" grade for him, as Physics is his worst subject.
    • However, in Paradox, Paradox states that he has a good logic about transdimensional metaphysics. Also, Paradox tells Ben that because of his knowledge in transdimensional metaphysics, he has been saved in many situations in the future.
  • At the end of the episode, when Azmuth states that alongside him, somebody else also thought that Ben was the true wielder of the Omnitrix, he was referring to Max, which was revealed in The Final Battle: Part 2, during Ben and Azmuth's conversation.
  • It is revealed in a flashback in Trouble Helix that the first time Ben and Albedo met chronologically was four years prior to Alien Force when Ben was 11 years old.
  • The shot of Albedo smacking his Omnitrix to transform into Big Chill is taken from Ben's transformation into the same alien in Kevin's Big Score.
  • From this episode onwards, Echo Echo's voice no longer has a robotic filter.
Ben 10: Alien Force Episodes
Community content is available under CC-BY-SA unless otherwise noted.