Yu-Gi-Oh! Duel Monsters International 2
Alternate title screen
Successfully complete the game to get a purple title screen. Press Up(2), Down(2), Left, Right, Left, Right, B, A at the title screen to it change back to its original blue color.
View credits
Successfully complete the game, then press Up(2), Down(2), Left, Right, Left, Right, B, A while playing the game.