[Game Play] To complete a level, you must collect all the gold in a scene. When you succeed, you may then climb a ladder to the top of the screen and enter the next level. You will use your laser drill pistol to drill pits and passageways through brick floors. You may dig through fissured bricks only, not through solid surfaces, and holes must be drilled all the way through to be effective. If a guard falls into a pit and gets stuck, it will become safe (for a moment) for you to run over him.