Rage! The Sleeping Giant, Spartan!

Synopsis

Mechanical Beast Spartan K5, boasting exceptional strength, did not try to fight on its own because it had forgotten how to rage. An enraged Dr. Hell tries to destroy Spartan K5, but Baron Ashura decides to try sending it to battle. Shiro and the others, relieved by the merely sleeping Spartan K5, get carried away and climb onto its body, starting a big fuss of singing and dancing. Then, Spartan K5 wakes up and begins to rampage. It had remembered its raging heart after being humiliated!