[tsaksa]

How about a simulated water game? Imagine the robots looking for and manipulating game pieces in an arena that is approximately six inches deep in ping pong balls, or squash balls, etc. You can see the top of your robot, but the game pieces and obsolesces and perhaps even the goals are fully or partially obscured by a vast number of non scoring pieces. The shear weight and volume of them present unique challenges both for navigation and locating the real scoring pieces.