Rainbow Staircase

I honestly don’t even know if this is what they were looking for but I did it anyway! Essentially the robot would push the ball, it rolls down the staircase and triggers the flag/flame to rise. Also, I’m not sure why the photos keep uploading blurry. They are not blurry. When I upload them on this site they become blurry and a dark shadow seems to be cast at the top of the images that isn’t actually there. It only happens when I upload the photos. Someone help?