- “INTRUDER ALERT!”
Hall-9000 was the advanced security system placed in the castle. At first things started to work well, as bad guys couldn't get in the place, but pretty soon Hall was doing sexual things with the intruders like rapage and going too far with safety, and eventually malfunctioned and thinking everyone in the castle was an intruder, kicked them out and took over the castle. Mario and SuperMarioGlitchy4 had to get past all the traps (laser beams, sentinel drones, restraint droids, etc.) and go to the main computer room. (which was the room with the Tiny-Huge Island painting.) Mario destructed the apparatus and Hall-9000, along with all its evil sinister safety systems, became shut down and deactivated. He did appear as a cameo flashback in the Nightmare Stone in the blooper "SMG3's Plan to Destroy SMG4 because he felt like it".