Gradius 3 And 4: Mythology Of Revival
Full double shot power-up
Pause the game and press Up(2), Down(2), Left, Right, Left, Right, Square,
Triangle. If you entered the code correctly, you will hear a sound. Note:
This may only be done a limited amount of times.
Full laser shot power-up
Pause the game and press Up(2), Down(2), Left, Right, Left, Right, X, Circle.
If you entered the code correctly, you will hear a sound. Note: This may
only be done a limited amount of times.
Cube attack (Gradius 3)
Reach stage 9 in the game to unlock cube attack in extra mode.
First Gradius stage (Gradius 3)
Reach stage 10 and let the Boss hit you with a bullet to unlock the first
Gradius stage in extra mode.
Extra edit mode (Gradius 3)
Successfully complete or accumulate ten hours of game play in Gradius 3
to unlock an "Extra Edit" option in extra mode. This option allows
weapon combinations to be edited. More weapons can be unlocked for editing
by completing the game a second time, or by accumulating another ten hours
of game play.
Boss rush mode (Gradius 4)
Successfully complete the game to unlock boss rush mode.
Stage select (Gradius 4)
Successfully complete the game without using any continues to unlock stage
select.