Mario is working the sewage tunnels and he did find a lot of pests to take care of down there. His job is to clear each phase of these little monsters by hitting the floor where they crawl. Of course there will be added wrath in the game like green and red fireballs that would toast Mario hot if he ever gets near to them. Stay clear of all the enemies as you try to eliminate them. Use the POW block if things get too hard to handle.