Hey @Dageroth! Ilann from Freaks United.
Thx for the feedback :)
May I ask which device where you using for the Hacker app ?
In order to complete the retinal puzzle, drag one piece and drop it on the correct position to latch it on the pattern. Try holding one extra second when dropping the image to its correct position (you should see a green highlight appearing).
I'm also available anytime on our Discord (link at the end of the page) should you need quicker assistance!
Have a nice day !
Ilann