Gradius Collection Codes -

Cheat mode:
Pause in any game under their easier difficulty setting, then press (x2), (x2), , , , , , . All weapons and power-ups will be unlocked.

Gradius Gaiden: Power-up:
Pause game play, then press (x2), (x2), , , , , , .

Free Play mode
Have a saved game file with over ten hours of accumulated game play.

Level select
Successfully complete the game without using any continues.

Gradius 3: Cube Attack
Survive until level 9.

Gradius 3: Extra Mode
Survive until level 9.

Gradius 3: Extra Edit
Successfully complete the game. Select Extra Mode to access more weapons.

Gradius 3: Gradius level
Intentionally get shot by the mouth attack of the final Boss.

Gradius 3: Salamander level
Intentionally get shot by the mouth attack of the final Boss.

Gradius 3: Stage Select
Successfully complete the game.

Gradius 4: Boss Rush mode
Successfully complete the game.

Gradius 4: Stage select
Successfully complete the game.

Gradius Gaiden: Stage select
Successfully complete the game under the normal or higher difficulty setting.