Before you go to Beverly Hills Wharf,get 50 bucks.Then after you talk to cool z. Go to the crate carring job and make another 50 then after your done the guy that carrys crates with you will show you a move called brawling uppercut. Then when you learn that move go to the place where the street fighter was in Beverly Hills Dwarf .Then all you have to do is brawling uppercut like three or four times to knock him out.