Gradius Collection Cheats For PSP

  1. Gradius III - Easy Final Boss

    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.

    Contributed by: NostalgicX 

  2. 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.

    Effect Effect
    Up, Up, Down, Down, Left, Right, Left, Right, L, R All weapons + Power-ups

    Contributed by: Terry28 

  3. Unlockables in Gradius IV

    Unlockable Unlockable
    Complete the game. Boss Rush
    Complete the game. Stage Select

    Contributed by: KMM1985 

  4. Unlockables in Gradius III

    Unlockable Unlockable
    Cube Attack
    Complete the game. You will be able to choose more weapons in Extra Mode. Extra Edit
    Survive until level 9. Here you will see most of unlockables. Extra Mode
    Gradius
    Salamander
    Complete the game. Stage Select

    Contributed by: KMM1985 

  5. Unlockables in Gradius Gaiden

    Unlockable Unlockable
    Complete the game on Normal or higher. Stage Select

    Contributed by: KMM1985