"From Jikuu Senshi Spielban"

MechaShoulder:
http://i231.photobucket.com/albums/...../Spiderbot.jpg

After a hard battle with Deathzero's tanks, the Wahrer unleashed a spider-looking robot with massive shoulders who was equipped with hidden weapons named MechaShoulder. MechaShoulder's head could flip open to reveal a weapon apparatus that dischaged electrical lasers. During the battle, Spielban managed to blast off the robot's arms, but the ring on its back remained and was used to bind Spielban. Gathering the strength he had left, Spielban broke free and destroyed MechaShoulder with his sword.

©Toei