Enjoyed the writing, especially the signs!
Got stuck at the place where the person wants a map for the orb. Couldn't find a map anywhere.
Nice idea! Having to sacrifice every 4th box adds to the yummy chaos. I managed to get 5 foxes before the time ran out.
I'm curious, did you try an alternate control scheme where you use a different button to delete boxes? Maybe right mouse button? I feel like that might give the player a little more control.
The concept is great! Looking forward to playing some puzzles.
I just have one suggestion - perhaps you could pause the physics in the background when player opens the color selection wheel. This would allow for some cool mechanics like jumping up through a platform and then switching color to land on it.