Activate the waypoint as soon as you enter the dungeon. When you walk ahead into the hallway, the floor will break beneath you and you'll fall to the B1 floor in an underwater sublevel. In this first ...
In order to fix Scrapper, speak to Gondo at the Scrap Shop in the Bazaar. This is also the shop where you upgrade items. He will ask if you need a favor from him. Reply "Yes." Gondo will talk mention ...