In column 28 - 30 you can see the letters like this:
28 29 30 - columns
E
L
U
C
= CLUE
Just a coincidence?
Edit: Also, the red and green dots remind me of minesweeper. And maybe if you worked out the positioning of the bombs, it could form a picture.
Green - 1
Red - 2
Orange - 3
Just a thought.
Right below it the letters w o r k appear

EDIT: And I shouldn't be doing this today. I have a huge leaflet with 200+ products to design....