Fatal Fury 1 (Arcade): Stage 7: South Town Village: Andy Vs. Billy
8Right before Geese plans to take down Andy on his own, he summons his final and strongest henchman, Billy Kane, to deal with the younger Bogard brother.
Watch me cheese THE CRAP out of Billy with Andy, here! When Billy loses his trademark staff, he start covering his face like a total coward, blocking your moves until another one of Geese's henchman tosses him another.
Once I really get in on him, just keep using Andy's Zaneiken on Billy while he's blocking staff-less. You'll not only keep doing chip damage on Billy, but it also lags how long it takes for him to get a new staff. Then, as soon as he lands with that new staff, try throwing him, again, which will make him drop his staff, again, leading him to cower all over, again.
Lather, rinse, and repeat until he's down for the count!