I'm pretty sure I've fought this boss battle before.
Building A Giant Walking Spider Mecha

Because dream it, and with enough Youtube followers you can actually make enough money to fund and build it, this is a video of the guys at Hacksmith building a massive walking spider mecha from six excavators over the course of a year. Sure it only has six legs instead of eight, but I’ve seen plenty of six legged spiders before. They’re usually older and have been through some stuff. The video ends with this spider losing yet ANOTHER leg though and bending its frame, rendering it inoperable — an unfortunately turn of events considering how much time and effort went into building it. Per Clark Griswold’s mother-in-law in Christmas Vacation, “I hope you kids see what a silly waste of resources this was.” I’m kidding, it was pretty cool while it briefly lasted.