[Pausert]

What I find striking about this render is how the outside, gray space lines up with the border of the field. Also, the shadow pattern is interesting...

As we've been told that "not everything is as it seems", or something to that effect, I'm chancing a guess that there might be some sort of scoring implement that requires the robot to line up several objects of various depths in order to actually score.
For example, instead of simply shooting a ball, the robot would have to shoot the ball at such an angle that it clears two goals. This would create a graduated scoring system that would encourage veteran teams while still providing an easier tasks for rookies.