But that's because you haven't seen it walk yet!
I don't know if I should laugh or run for my life! The poor blighter is ludicrously gawky - 'all elbows and knees' is the phrase that comes to mind, despite the fact that it's 100% knees. At the same time, there's a horrifying determination in those flailing footsteps. This is the ungainly gait of the serial killer at the end of the movie, when all the shadows have lifted and the only thing left is to chase some poor woman through an abandoned house/warehouse/motel/anywhere so long as it's dark and abandoned.
It's also the ungainly gait of a pagurid hermit crab. Like other hermit crabs, it walks with only four legs. Unlike most other hermit crabs, this one uses its other four legs to grab hold of a sea anemone rather than a snail's shell.
It also has, quite simply, a whole lot of leg!