I wanted to call it "RollyTrolly" but that's to many letters. Its suppose to be 10 characters long with a 100 word description. I think I'm gonna stick with this design only because i dont really have time to work out all the others and this one grabbed me the most.
A Reaverbot that is basically a shell sitting on a ball. The ball rolls by either the reaverbot pushing on the ground, or maybe it has motors in the shell that make the ball rotate in the direction it wants to go. It has blasters in each of its legs for shooting but it can also rush at diggers. The rush attack can leave it open to attack because it has a hard time stopping. If say the ball where destroyed the reaverbot isnít helpless, it can support it self with just its legs it just canít fight well.