|First Appearance||Ben 10 Returns: Part 1|
ID Masks are a type of alien technology in which the DNAliens first used to hide their true identity and take on another appearance of a human.
The ID masks can change someone's appearance. It makes its first appearance in Ben 10 Returns: Part 1 where DNAliens use ID Masks to take the forms of various Human beings. Ben Tennyson used one to turn into a DNAlien to sneak through their ship. It shows that DNAliens even use ID Masks to make them look like their previous forms. Max Tennyson also used one to be invisible, which shows that they also can be useful for camouflage. Kevin used an ID Mask to hide his hideous monster form and made him look like himself. He even shows to fix ID Masks. The image produced by the Masks can be momentarily disrupted by flashes of lightning.
It is also used by Plumbers' Kids who are obviously part alien to hide their appearance and be able to roam freely on Earth.
ID masks can also be used to copy objects as seen in Greetings From Techadon, when Ben thought to use Kevin's old ID mask to copy the Ultimatrix symbol and placed it onto Vulkanus' back so that the Techadon Robot would attack him instead of Ben.
|Mutant Kevin||Normal Kevin|