No.0 change your gender (but not your sprite however), and starting from #4, each flag represents whether you've obtained a certain coin. You get 10 more of every card, including energy cards. This would trigger the Great Master Cup in the Pokémon Dome, which is normally accessible after winning 10 times in a row in Link Battles. It causes ONLY the Sealed Fortresses to open. It will reset both Challenge Machines data and the first time you select either of them, it will give you a message saying that the data is broken and to try to get a new score. Note the game will freeze on the map (the first time) if you have mail in your box. This doesn't literally deliver all your mail, rather it will send 16 mail to your mailbox (leave to the map and back to receive the first 8, delete them out and repeat to get the other 8). If used on the TCG island and you go to the map you will be at Mason's Laboratory, and on the GR island you will go to the GR island Airport. If used on the TCG island and you go to the map you will be at the TCG island Airport, and on the GR island you will go to the GR Psychic Stronghold. You can change back and move again, but you may not be able to talk to anyone or leave the room. With the Game Genie code provided this will not work properly because, while your battle portrait changes and the Name Entry menu will default to the female/male name, you will become frozen in place with the male/female sprite, and saving after doing this may kill your file, and even if it doesn't, you will still be stuck. This sort of works if called from the map screen, but the menu is generally more glitchy from there. The Sealed Fortresses remains locked though. Select this and you've defeated everyone.
Some items in this menu work fine, others, not so much. Some options work, some sort of work, and some are just really confusing to use. Use the codes 116-0BB-F7A + A86-0CB-91C + 496-0DB-E63 + C96-0EB-5D5 for the Scenario menu to replace "status" in the regular menu. That's right, there are no less than three separate debug menus in this game.