Dragon - The Bruce Lee Story - Platform: Super Nintendo

Level select
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Highlight the "Test Music" option, then quickly 
press B, A, R. 

Unlimited Chi
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Enter the options screen, set the sound to "Monaural" 

then quickly press Select, A, L, A, R, Y.

Defeating the sailor
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When the sailor whips out his chain, just stand there and let 
him wrap it around your neck. Then, proceed to throw him using 
the normal Back + Punch technique.