Primary Collection of Cheats
Instant double shot power-up
Pause the game play after passing the first Boss and press [Up]x2, [Down]x2, [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]x2, [Down]x2, [Left], [Right], [Left], [Right], [Square], [Triangle], [Select], [Start].
Instant laser shot power-up
Pause game play after passing the first Boss and press [Up]x2, [Down]x2, [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]x2, [Down]x2, [Left], [Right], [Left], [Right], [X], [Circle], [Select], [Start].
Cube Attack mode
Reach level 9 in Gradius 3 to unlock Cube Attack.
Boss Rush mode
Successfully complete Gradius 4 to unlock Boss Rush mode.
Pause the game play after passing the first Boss and press [Up]x2, [Down]x2, [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]x2, [Down]x2, [Left], [Right], [Left], [Right], [Square], [Triangle], [Select], [Start].
Instant laser shot power-up
Pause game play after passing the first Boss and press [Up]x2, [Down]x2, [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]x2, [Down]x2, [Left], [Right], [Left], [Right], [X], [Circle], [Select], [Start].
Cube Attack mode
Reach level 9 in Gradius 3 to unlock Cube Attack.
Boss Rush mode
Successfully complete Gradius 4 to unlock Boss Rush mode.
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