Dragon - The Bruce Lee Story — Cheat codes

Disable Bosses
Go to the options menu and highlight the "Movies" selection. Press A, B, A, C, A, B or A, B, A, C, A, B(2).Start the game and you will find that the bosses Do not move (except one of them when fighting two at once). This makes the game easier, but you or a friend can use controller two to play as the current Boss.
Contributed By: pool_of_jello 8    0

Secret Difficulty
Enter options and highlight DIFFICULTY, then press B, A, Left, Left, Start. The screen should flash and you can now select "For Paul... " Possibly designed for the Lead Tester of the game Paul Welton or Paul Moore.

Start with full Chi
At the GAME SELECT screen with GAME highlighted, press Start, C, A B, Start. The screen should flash when entered correctly.

Unknown Cheat (North American version only)
Enter options and highlight SPEED, then press C, Right, A, B, Start. The screen should flash when entered correctly.