Codes

  • Acquire Speed Up, Missile, two Options, and Barrier

    Pause the game, then press Up, Up, Down, Down, Left, Right, Left, Right, B, A, Start. This can be performed once, plus one more time for each time a Big Core boss is destroyed before its core turns red.

    Contributed By: Dyse and GeneralFailer.



  • Continue

    At the Game Over Screen, press Down, Up, B, A, B, A, B, A, Start.

    Contributed By: GeneralFailer.



  • Level warps

    Accomplish the following tasks to warp to a new level.

    CodeEffect
    In level 1, when the thousands digit of your score is even, destroy 4 hatchesWarp to level 3 after defeating Core Fighter
    Destroy Xaerous Core at end of level 2 within 2 seconds of its core turning blueWarp to level 4
    Destroy 10 stone heads in level 3Warp to level 5 after beating level

    Contributed By: terrisus.



Easter Eggs

  • Secret Message

    Hold B + A while turning the power on or resetting to get the following message:

    KONAMI ONE
    GRADIUS ONE

    Contributed By: SimonBob.



Secrets

  • 10,000 Bonus Points

    Get 6 powerups so that the ? box is selected. Then, when the thousands digit of your score is a 5, get a 7th powerup and you will get 10,000 bonus points.

    Contributed By: terrisus.



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