on Normal mode of this game, you playing normally.Don't presses the dodge button too late, if you do it too late, opponent will hit you with his punch without you dodge. Also don't press the attack button too late. If you clicking attack button to late, it will be changed to dodge button and you will have to dodge your opponents's attack! with his button
On hard mode. Your hp and damage is decreased while your opponent's damage and hp will be increased up, attack button and dodge button now only lasts for half a second so you must have your great playing skills in order to complete this mode!
-once your opponent has 0 hp, click finish him button to finish his ass