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