Contra Rebirth
Play as Plissken (lizard):
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Successfully complete the game on the Normal difficulty to unlock Plissken
(lizard).
Play as Tsugu-Min (robot):
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Successfully complete the game on the Easy difficulty to unlock Tsugu-Min
(robot).
Nightmare mode:
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Successfully complete the game on the Hard difficulty to unlock Nightmare
difficulty. In Nightmare mode, any enemy that is destroyed will shoot a blue
ring in your direction.
