I have noticed that the spidertron legs are sometimes not effected by swords. I see my sword visually hits a leg with a side swing but no damage was done. This has happened several times. On some levels a spider torn will get stuck between walls of arena and pillar. This would be ok, but the when the saw blades come by, they do no damage to the legs. That means I have to eave through blades to kill the spider, while it is shooting bombs. On another note, I liked the previous kill zone of the bombs.