Codes

  • Debug Mode

    Enable Sound Test cheat. Press I, II, than keep pressing Select until the debug screen appears. You can now do the following:

    EffectCode
    Extra Lives, Bombs, PowerUse level select to go onto which level you want, then hold I and II and press Start to begin gampleay with 10 lives and 10 bomb
    Half Game with lots of SatellitesEnter 83
    InvincibilityEnter 77. Press Up, Down before leaving debug screen.
    Level SelectEnter 00 (level 0) - 09 (level 9)

    Contributed By: PIW.

  • Select Difficulty

    After selecting your mode, press Run and Select simultaneously to reset the game.

    EffectCode
    ''Normal Dog'' or ''Hard Human'' difficultyPlace I and II on top turbo speed and hold down I, II and Select simultaneously
    ''Super Mania'' or ''God of the Game'' difficultyPlace I and II on low turbo speed and hold down I, II and Select simultaneously

    Contributed By: Colin.

  • Sound Test

    Hold Select and alternately press Left and Right repeatedly until 'Sound 01' appears.

    EffectCode
    30 ContinuesAt the title screen, hold Select and press Run until the phrase 'Area 1' appears.
    Area 0, 30 continuesEnable the Sound Test cheat. Press I, II, Select 22 times. Then hold Select and Run until the game starts.
    Sound TestHold Select and alternately press Left and Right repeatedly until 'Sound 01' appears.
    View EndingHold Right, and keep pressing Run quickly at the title screen.

    Contributed By: PIW.

Secrets

  • 16 Lives, 36 Bombs and Double Score

    Don't shoot any bosses who are on odd numbered levels (1,3,5 etc). You will receive the lives, bombs and score when the boss leaves.

    Contributed By: PIW.

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