We are still searching for game pictures and screenshots for Gradius Collection (Sony PSP). We do not have any cheats, codes, or hints yet.

Gradius III has unlockables. You must complete the following tasks and finish your game. That means if you don´t die, you won´t 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.

Effect - Code

Cube Attack - Survive until level 9. It´s 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. It´s part of the first level from Gradius.
Salamander - Get hit by a shot of the last boss. It´s part of the first level from Salamander.
Stage Select - Complete the game.