Instant double shot power-up: Pause the game play after passing the first Boss and
press Up(2), Down(2), Left, Right,
Left, Right, Square, Triangle. A sound
will confirm correct code entry. Note: This may only be up to
25 times, equal to the number of levels that have been successfully
completed. Note: To this power-up for player two, press Up(2),
Down(2), Left, Right, Left, Right,
Square, Triangle, Select, Start. King 4:20.
Instant laser shot power-up: Pause game play after passing the first Boss and press
Up(2), Down(2), Left, Right, Left,
Right, X, Circle. A sound will confirm correct
code entry. Note: This may only be done up to 25 times, equal
to the number of levels that have been successfully completed.
Note: To use this power-up for player two, press Up(2),
Down(2), Left, Right, Left, Right,
X, Circle, Select, Start. King 4:20.
Instant lasers, missiles, options, and
double lasers power-up: Pause game play after passing the first Boss and press
Up(2), Down(2), Left, Right, Left,
Right, L2, R2. A sound will confirm correct
code entry. Note: This may only be done up to 25 times, equal
to the number of levels that have been successfully completed.
Double options, lasers, missiles, shield
power-up: Pause game play after passing the first Boss and press
Up(2), Down(2), Left, Right, Left,
Right, L1, R1. A sound will confirm correct
code entry. Note: This may only be done up to 25 times, equal
to the number of levels that have been successfully completed.
Extra Edit mode: Successfully complete or accumulate ten hours of game
play in Gradius 3 to unlock an "Extra Edit" option.
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.
Cube Attack mode: Reach level 9 in Gradius 3 to unlock Cube Attack.
Original Gradius levels:
Intentionally allow a Boss in level 10 in Gradius
3 to hit you to unlock levels from the original Gradius.
The original levels will also be unlocked in extra mode.
Boss Rush mode: Successfully complete Gradius 4 to unlock Boss
Rush mode.
Stage select: Successfully complete Gradius 4 without using
any continues to unlock the Stage Select option for that game.
