This shows the Tenochtitlan maze from above. Note that this year, since the robots autonomously pick up the gold, it is no longer in balloon form.
This shows a closeup of the new robot heads. Note that each robot has a permanent magnet, with which it manipulates the "gold," and a CMUcam vision system.
These pictures show the Batteries Not Included team, one of the Final Four contenders. Thanks to Rob of BNI for taking the pictures.