This idea came from my watching of anime. In fact, both the drill and spiral energy came from the anime, “Gurren Lagann”. This is an anime with giant fighting robots where the main character’s main weapon is the drill! The drill is powered by what as known as spiral energy which works on emotions. I dug around the vast vault of media known as YouTube and was able to find an excerpt from the first episode which may explain the usage of drills. It’s a short video, 5 minutes but it’s sufficient to elaborate what I mean about the drills.