a hobby mech   (link)

http://www.neogentronyx.com/
Typically a mecha is a large robotic vehicle. The main characteristics generally include large size 15 to 50 or more feet in height, and generally weighing several tons. They currently exist in the world of science fiction movies, comics, and animes. The task undertaken by Neogentronyx has been to create one of these mecha for practical uses and applications in the real world. The possible uses for such a machine include and aren't limited to construction in virtually any environment, underwater on land, underground, and even one day in space. There are also possible military applications.

The NMX04-1A is the first attempt at a fully functional prototype by Neogentronyx, but it will certainly not be the last. It is possible to arm the mecha for virtually any possible situation, whether it is military, construction, firefighting, or riot control or entertainment. The possibilities at this point are seemingly limitless.