Ys III: Wanderers From Ys is a role playing game for the SNES, and is a single player experience. It was developed by Falcom Corporation and published by Renovation.
You can get items from Farther earlier in the game. First put in the invincibility code and go to the world map. Because of a flaw with the code use controller two and push left or right to choose where you want to go. you could actually select a game that you are only about a half an hour into, and go to Ballacetine castle and get the battle shield!
Begin and save a game, then press RESET and wait for the American Sammy logo to and fully appear. Now press UP, DOWN, UP, DOWN, SELECT, START on controller 2 before the logo disappears. Select Continue and then press SELECT to bring up a sub-screen. Now, press START on Controller 2 and the word "Debug" will appear next to Status if you've done this correctly.
While playing, press SELECT to bring up a subscreen, then hit START on Controller 2.