The Ninja/Hidden content
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On the Game Over screen, don't press anything. When the Sega Mark III logo appears, press 
if playing as player 1, or if playing as player 2, then start the game. This only works in the Japanese version of the game.
Hidden message
On the title screen, press to get the message "うどんこ こんどう". This only works in the Japanese version of the game.
Bonus points
The player is rewarded with nearly a million bonus points by completing a stage without killing any enemies. This score bonus rewards multiple extra lives and takes about fifteen minutes to tally.
References
| The Ninja | |
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Main page | Comparisons | Maps | Hidden content | Bugs | Magazine articles | Reception | |
