I can't resist: "that robot could definetly plunge a toilet or two!" Just joking. Good start. I think the feet need pivot points. Also this would be a good "glass walker" with suction points (swivel both legs 90 degrees and add a third leg.) When one leg moves forward, all the weight will be on one leg. The body will have to lean to the side with the forward (or backwards) leg. So animating would be tough to make it look realistic. Maybe make the legs look like they are able to move up and down. That's why the "spider" type robots are so popular -- they look like they would be able to walk. Good luck!