Now this is a cool game! The vibes are on point, this kind of moody grayscale world feels quite inspiring, and really highlighted the red/blue blocks. I occasionally had issues not parsing the difference between a wall and a background, but overall I think it works well.
The core mechanic is neat too, you squeezed quite a bit out of it. I think it could work well for some more puzzly levels too, there’s some potential here if you’re interested in working on this project more. I felt a bit disappointed there wasn’t a sort of final test of the mechanics, but perhaps it’s for the best those mechanics were relegated to optional content. I did manage to find all the cats, pretty neat how many secrets you managed to squeeze in. Nice work!