Rad - Breaks iron door

Jack took the flight of stairs two at a time. They ended abruptly in a steel door ten feet high. Jack examined it with his bionic hand but found nothing. There was no other choice. He'd have to use brute force.

Jack hadn't used his Ninja powers for a long time. He closed his eyes and focused all his concentration into the Ninja iron boots on his feet. Then he unleashed his body in a karate kick that smashed down the door like it was a piece of bamboo.

***

Worlds of Power: Bionic Commando, Chapter 18