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By on April 10, 2007, with 72 Comments

Hey people! Be careful not to stare too long at the animation below, it can cause dizziness or possibly epileptic seizures. Don’t say I didn’t warn you :) It’s little scary as well. Look how that strange girl’s face appear to constantly and fluidly move to upper right corner of your screen, while in fact, the animation only loops forever. Because of black and white negative blinking, the face appears to move only in one direction (you don’t see it moving back, when the animation loops to its start). I have another great example of this! Check Christopher Walken optical illusion and Scary Spider illusion. They both give you the same effect. More can be found inside our Scary Optical Illusions category. Oh, I almost forgot our most recent one – it is called “Flying through city“.

Scary Optical Illusion Animation


72 Responses
  1. Kristina says:

    It’s a guy, not a girl. Unless the girl has hair on her chin…

  2. Anonymous says:

    Maybe, I’m nto sure. IT looks like a girl from te face and the hair, but the chin does look boyish. BUt seriously, does it really matter?

  3. Shauzia says:

    Pointless. The backround is the only thing moving. The pic is just flashing. To the B to O and the R and I and N and G, What does that spell? BORING!

  4. Anonymous says:

    its a transvestite

  5. Anonymous says:

    Why is there a page of a google search results in the background?

  6. John says:

    To the person who said that this boring, I am waiting for you to post a better illusion, until then don’t be so quick to judge.

  7. Tim says:

    Very cool! Keep up the good work!

  8. Tim says:

    Which is the background and which is the image depends on what colour the DJ is – the neagtive space (white) and image (black) reverse when the colours switch, which has a fair bit to do with the illusion.

  9. Jesse says:

    ummm… cool, but…
    it has a beard, it’s a guy.
    and why’s it scary?

  10. Anonymous says:

    Well put, John

  11. Anonymous says:

    its a dude with dreds there happy? lol

  12. Ben says:

    The illusion looks like it’s moving because the text is moving. The text is probably google text results because you’re probably very familiar with seeing them scrolling, and thus you don’t think twice about them.

  13. devildog says:

    It looks like you just copied some random ad for a website. Probably an ad by google. Dissapointing.

  14. devildog says:

    It looks like it’s just an ad for some random website. It’s probably an ad by Google, which would be why there is something in the background. Disappointing

  15. Francois says:

    “Epileptic seizures can sometimes be triggered by certain frequencies of flashing or flickering lights, or by certain geometric shapes or patterns.” epilepsynse.org.uk

    “Migraine Triggers: … bright or flashing lights…” bupa.co.uk

    Enough with the flashing lights already!

  16. Kaeo says:

    If you click and drag the image it will freeze so you can get a better look at it. I definately think it’s a guy and the image is the white face with black hair. It is interesting how it keeps moving to the right though.

  17. Ribbed says:

    Always interesting to see what people can do with this effect. While it’s not one of the better examples, it does demonstrate the sense of constant unidirectional movement quite well. Good use of the background text as well, 2 directions in 1 picture.

    Another thing I found interesting… when a “good” illusion is posted, a dozen kiddies are all proclaiming “first post!!”, like seeing a “cool” blog entry before anyone else somehow makes them the better person. But when a not so good entry comes along, y’all are too busy bitching about it to even care if your first or not. I cast my vote for more not so good entries :)

  18. Elliexx ANIMALS ROCK!! says:

    yeh, go u John; i agree. kl illusion, but as Vurdlak said, it does make u feel dizzy after a while!! lol

  19. AK says:

    Wateva u guys say, this illusion rocks. I love the effect, and i thought the guy/girl was moving at first glance. I dont like the text though, maybe there is a better way to do it?

  20. Anonymous says:

    Whats wrong with girls and facial hair anyway??

    (Joke btw. i am a guy.)

  21. Dogmanov says:

    Epileptic seizures are triggered between 4-20 Hz, which this image may fall foul of… Other than that, it just looks like another annoying banner ad… Not good when you’re trying to work using other OS X widgets, makes you want to turn the offending one off!

  22. Anonymous says:

    NEITHER the background or person is moving, THAT’S the illusion. If you don’t believe me, cover the picture except a small hole and watch it. Nothing is moving, just flashing.

  23. Tim's Movie Site says:

    Okay – enough already. I have your gadget on my google homepage and it’s starting to give me headaches to have this flashing in my face every time I go to look at the new news!

  24. Anonymous says:

    Had to take it off my desktop -it was driving me crazy with that flashing.

  25. Anonymous says:

    is that google in the backround?

  26. Anonymous says:

    ughhhhh my head hurts. this image does give dizzyness…..

  27. alex_can_fly says:

    Liked the City one better, but still a great post! Keep up the good work!

  28. Nutty Cone says:

    This isn’t scary at all! And its not a girls face, its a guy.

  29. Anonymous says:

    not what i want flashing when i open my dashboard. took the whole thing off, bad idea. i use my dashboard, and if things are flashing on it, i cant use it. just a thought.

  30. Curlibear says:

    It’s Michael Jackson!

  31. Anonymous says:

    dis b so dumb -_-

  32. devildog says:


  33. Anonymous says:

    its a girl/boy it did not make any sense well from my point of view it was sooooo BORING!! yet creepy as the look was creepy

  34. Anonymous says:

    this suck

  35. Anonymous says:

    umm… it’s suppose to be blinking?


  36. Anonymous says:

    i actually did start to feel dizzy. this has never happened to me before….

  37. Anonymous says:


  38. Anonymous says:

    its supoose to be moving. must be broken. isnt doing anything!

  39. Anonymous says:

    its suppose to be moving? nah, not happening

  40. hmmmm says:

    Yeah its not even flashing… something must have gone wrong… I have seen these before though, and they are pretty cool (when they work)

    And that guy looks VERY familiar…

    where did this image come from???

  41. Anonymous says:

    you’re supposed to click on it and it’ll start to go.

  42. mikayla says:

    i dont get it wats so scary its a face moving and changing colours

  43. hmmmm says:


    I feel like such an idiot…

    Thanks, anonymous no.41 at 3:39pm- i honestly never would have got that!

    And I have decided this guy is NOT who I thought he was- the beard isnt long enough. (but yes, it’s a GUY)

  44. Anonymous says:

    The girl doesn’t have hair on her chin she has a shadow of her lip

  45. Anonymous says:

    look like Gene Simmons

  46. cuppycake says:

    No, it is a girl. And that’s not hair on her chin, its a shadow..NOT hair..shadow..

    And this is a little boring..just not feeling it.

  47. Anonymous says:

    i feel sick

  48. Anonymous says:

    it’s not just a guy…it’s a hot guy ^^
    and it’s a very cool illusion as well…

  49. Anonymous says:

    look alike batman… LOL

  50. seanki says:

    I’m being Hypnotized!

  51. Anonymous says:

    I think it’s funny that someone thought that only the background was moving and not the face. The face and the background are both doing the exact same thing! They are both flashing back and forth between two different positions, and they both appear to be moving constantly in one direction, but never actually do. Very effective illusion imo.

  52. Gabriela says:


    It does move… check the .gif the different images move a little but they DO move…

    There are 2 white images and 2 black ones, the first in white is in the center and the next one also white, moves up a little… same with the ones in black…

    And what’s with the google search in the background

  53. charlotte says:

    what is the point of doing theese illusions if you cant even watch them i think that you need to fix your website so u can atually persuie what you are trying to advertise!!! thanks so much!

  54. Franx says:

    It’s creepy how the “scary girl” has a goatee… really kwl, tho.

  55. Pyro says:


  56. randommmmm!! says:

    its a guy not a girl

  57. nobody says:

    what do i google to find that????

  58. !!me!! says:

    ohh scary.. NOT!

  59. Bob says:

    by the way nothing in the picture is moving. It’s jutt changing colors. You can test this by puting ur finger righer under his eye… u will see that it stays in the same spot.

  60. Wow says:

    it burns my eyes

  61. tacos says:

    stupid that causes seizers than why are they showing it to us GOSH PEOPLE

  62. Shaleha says:


  63. Starlet says:

    that is no girl, unless you’re gonna say a girl has a small beard

  64. E.Gautham says:

    according to me, the picture with white background looked much like a guy and the same image with the black background looked like a lady.

  65. Anna says:

    i see how the ‘girl’ loops

  66. Al says:

    it chngs colours stupid!! n itz NO WAY scary+itz nt a girl..!!!

  67. keira says:

    if you look cerfuly you can see a website with writing on it what do you think

  68. Ross Hill says:

    Lol, Notice how she has a beard XD

  69. Poripoporing says:

    -Has a seizure-(joking not really but this is creepy!)

  70. Bob says:

    Actually, you CAN see it moving back if you look at her (his?) right ear :)

  71. I is so cool says:


  72. Danny says:


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