[EricH]

Originally Posted by Cartwright

I know that a lot of robots that have crab drives or omni wheels can be moved rather easily, but how easily do you think this could be pushed around?

Crab drives are much harder to push than omni wheeled drives. (Just ask 118 and 469.) It's a crab, so I don't see much of a problem with it holding its ground. Then again, it might decide to run away and go around the defense.