DD7E 7FDD Infinite time
D47E 7FDD Timer is 2x fast
D77E 7FDD Timer is 3x fast
C250 7FA7 Computer can't win a round--except last round--game ends 
after 4 rounds
CB85 E40F + D685 E46F + DD85 E4AF Player 1 is Billy Kane
DB85 E46F + CB85 E40F + DD85 E4AF Player 1 is Axel Hawk
CB85 E40F +DD85-E4AF + DC85-E46F Player 1 is Lawrence B
D885 E46F + CB85 E40F + DD85 E4AF Player 1 is Wolfgang Krauser
CB82 E40F + D682 E46F + DD82 E4AF Player 2 is Billy Kane
DB82 E46F + CB82-E40F + DD82-E4AF Player 2 is Axel Hawk
DC82 E46F + CB82-E40F + DD82-E4AF Player 2 is Lawrence B
D882 E46F + CB82 E40F + DD82 E4AF Player 2 is Wolfgang Krauser
FDD5-EFCB Super jump--player 1, straight-up jumps only
EED5-EFCB Bogus jump--player 1, straight-up jumps only
6D7D-54AD Infinite energy--player 1
For the last code, Turn effects off after you press Start in the codescreen 
and keep off until Character Select screen
7D78-770D Start with 1/2 energy