The giant mechanical spider in Wild Wild West is usually just called the mechanical spider or giant mechanical spider. It’s Dr. Arliss Loveless’s big steampunk war machine.

Quick answer

  • Name: giant mechanical spider.
  • Owner/villain: Dr. Arliss Loveless.
  • What it is: a steam-and-steel tarantula-style combat machine.

Tiny context

People often remember it as the movie’s biggest visual gag and signature machine, so “the spider mech” is also a common casual name for it.