This is a video of everyone's favorite German slingshot connoisseur Joerg Sprave demonstrating the fully automatic machine gun 'Revolverception' he made by mounting four revolvers (technically cap-guns since gun laws are much stricter in Germany) onto a drill-powered spinner. Unfortunately, since they are just cap guns, we don't get to see how accurate the weapon actually is. But my ninja sword? My ninja sword is deadly accurate. Just ask my mortal enemy. "He sliced his own leg to the bone the last time we battled and had to call a truce." That's not true! "Then why the wheelchair?" I...have whatever Stephen Hawking has. "ALS?" No, a brain that could CRUSH YOURS WITH ITS KNOWLEDGE. "I'll push you down the stairs." Pretty pretty please don't.
Keep going for the video, then get out there and don't make one yourself. Just beat each other with sticks in the woods playing knights of the dark forest or whatever.