Pause in any game under their easier difficulty setting, then press Up, Up, Down, Down, Left, Right, Left, Right, L, R. All weapons and power-ups will be unlocked. In the Japanese version of the game, press Up, Up, Down, Down, Left, Right, Left, Right, X, Circle.
UnlockablesUnlockables in Gradius IVGradius IV has unlockables. You must complete the following tasks and finish your game. That means if you donīt die, you wonīt unlock anything, even if you have a saved game after completing the task. You should be careful too: If you load a game without a now unlocked feature, you will lose it again if you finish your game:
| Unlockable: | How to Unlock: |
| Boss Rush | Complete the game. |
| Stage Select | Complete the game. |
Gradius III has unlockables. You must complete the following tasks and finish your game. That means if you donīt die, you wonīt unlock anything, even if you have a saved game after completing the task. You should be careful too: If you load a game without a now unlocked feature, you will lose it again if you finish your game..
| Unlockable: | How to Unlock: |
| Cube Attack | Survive until level 9. Itīs the cube attack from level 9. |
| Extra Edit | Complete the game. You will be able to choose more weapons in Extra Mode. |
| Extra Mode | Survive until level 9. Here you will see most of unlockables. |
| Gradius | Get hit by a shot of the last boss. Itīs part of the first level from Gradius. |
| Salamander | Get hit by a shot of the last boss. Itīs part of the first level from Salamander. |
| Stage Select | Complete the game. |
Put the ship in the middle of the screen, near the bottom. The blasts will be unable to hit you. Even better yet, this boss doesn't require you to actually damage it to a certain point, so just stay in this safe zone and it will die after 15 seconds or so.
