Brain Dead 13

Lance a young computer expert, is called to fix a computer at a scary, dilapidated castle. After repairing a large super-computer, Lance learns of a diabolical plan to take over the world. He quickly finds himself in trouble, being chased around the castle by Fritz, a psychotic servant of Dr. Nero Neurosis, the main villain of the story and a disembodied brain. The player must guide Lance through the castle in order to defeat Dr. Neurosis and escape with his life. Source: Wikipedia, "Braindead 13", available under the CC-BY-SA License.