Found a glitch earlier where when you attempt to cut a Spidertron 6000s legs off while jetpacking with your sword to either the left or right sometimes it won't effect the spider. Makes killing them sometimes frustrating.

I find the best route with the legs is to do a jumping side-ways attack. The jetpack cuts are a bit more shallow, especially the glancing blows. There are a couple bugs filed for hit detection in general, but if more people run into any peculiarities with Spidertron, I'll certainly open a file just for it.

-Cheers