Robot Randy is an outcast from a distant planet populated by gigantic violent robots. Mechas are typically depicted as humanoid mobile robots. Kills are used for such things as giant mecha robots and spaceships. Robotics involves design, construction, operation, and use of robots. An early prototype can be seen in NASA's collection of humanoid robots, or robonauts. They all share a theme of the interaction of humans, robots, and morality. There the player fighting against battalion of clone super-soldiers, robots and paranormal creatures. All of the robots in these competitions must be autonomous. Flies have inspired the design of miniature flying robots. He presides over weddings and funerals of robots and humans. Algorithms have been designed in case any such robots become a reality. These were smaller than the other remote control robots mentioned above. There are also a number of simulators available for underwater robots such as AUVs. Many different balancing robots have been designed. Chaotic dynamics have been exhibited by passive walking biped robots.