Raiden 4: Overkill [cheats]
Boss Rush mode opponents:
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Defeat a Boss to unlock it in Boss Rush mode.
Gallery option:
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Complete the second loop in any mode.
Free Play mode:
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Successfully complete the game. Note: This must be repeated for
every game mode.
Stage select:
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Successfully complete the game. Note: This must be repeated for
every game mode.
Weapon select:
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Successfully complete the game. Note: This must be repeated for
every game mode.
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