* Konami code: The popular Konami code can be used in this game. Pause the game and press up, up, down, down, left-shoulder, right-shoulder, left-shoulder, right-shoulder, B and A, then unpause the game. However, Darius is obviously a Taito franchise, and the Silver Hawk self destructs when the player enters the code. Sneaky.
* Zone X - Boss endurance mode:
An option exist to access a secret Zone X which consists of a boss rush mode where eight bosses come at the player in a row. When the Taito logo appears (right before the title screen), press Down, X, Up, B, Left-shoulder, Right-shoulder, Left and A on the second controller. This code has to be fully entered before the Taito logo disappears, and a chime sound should signal that it was successfully executed. When you start the game, the message Wow!! You discovered the Boss endurance mode! will appear.