Password - Konami Code | |
| Codes must be entered after Pausing the game.Code works on all of the games in the collection on their easier settings, but only works once per level. | |
| All weapons + Power-ups | Up, Up, Down, Down, Left, Right, Left, Right, L, R |
Unlockable - Unlockables in Gradius IV | |
| Stage Select | Complete the game. |
| Boss Rush | Complete the game. |
Unlockable - Unlockables in Gradius III | |
| Extra Edit | Complete the game. You will be able to choose more weapons in Extra Mode. |
| Salamander | Get hit by a shot of the last boss. It´s part of the first level from Salamander. |
| Gradius | Get hit by a shot of the last boss. It´s part of the first level from Gradius. |
| Cube Attack | Survive until level 9. It´s the cube attack from level 9. |
| Extra Mode | Survive until level 9. Here you will see most of unlockables. |
| Stage Select | Complete the game. |
Unlockable - Unlockables in Gradius Gaiden | |
| Stage Select | Complete the game on Normal or higher. |
