Tournaments
You can unlock several tournaments on ̶0;Yu-Gi-Oh! Day of the Duelist̶1; by participating in and winning tournaments and by earning specified amounts of damage points. For instance, unlock the Weekend Tournament by obtaining 100 damage points. Winning the Weekend Tournament seven times will unlock the KC Cup which, in turn, unlocks the Limitations Tournament. Unlock the Sugoroku Tournament by dueling and defeating everyone in Grandpa̵7;s store, then talking to Grandpa. The Sugoroku Tournament is Grandpa̵7;s in-store tournament that takes place on the day his store closes. Unlock the Survivorship Tournament by winning the Championship Trophy, then going to the Mystic Land's Mystic Coliseum to duel in the tournament, which takes place daily.
Trophies
Earn the ̶0;Yu-Gi-Oh! Day of the Duelist̶1; Championship Trophy by winning each of the unlocked tournaments, which will qualify you for the regional tournament. Win the regional tournament and you will earn a spot in the national tournament. Win the national tournament and you will earn the Championship Trophy, which enables you to participate in the Survivorship Tournament. You can also earn the Qs of K Trophy by accepting and solving Seto Kaiba̵7;s challenge each Friday at the KC Tower.
Title Screen and Credits
The title screen on ̶0;Yu-Gi-Oh! Day of the Duelist̶1; is typically blue, however, if you successfully complete the game, the title screen switches to purple. Change the title screen back to blue by pressing the up arrow twice, the down arrow twice, the left arrow, the right arrow, the left arrow again, the right arrow again, the B button, then the A button. Successfully completing the game will also make the credits appear, which you can repeat by entering the same key sequence used to change the title screen from purple to blue.
Rare Cards
Enter one of a variety of cheat codes to obtain rare Yu-Gi-Oh! cards on ̶0;Yu-Gi-Oh! Day of the Duelist.̶1; For instance, enter ̶0;40173854̶1; to obtain the Amphibious Bugroth card or ̶0;96420087̶1; to obtain the Contract With The Dark Master card. You can also unlock the Insect Armor with Laser Cannon card by entering ̶0;03492538̶1; or the Machine Conversion Factory by entering ̶0;25769732.̶1; Each of the game̵7;s 1,000 cards can be obtained either by earning them in battle or by entering a cheat code.