chocoloco on 21 March 2012
It is a shame you have not fought before otherwise you would know if you are a better ground or standing fighter. Since he is fat, the obvious choice is your stand up game, next comes style.
I recommend the always faithful drunken monkey style. Literally get trashed and go for his face. When his puddgy self hits you, you will feel nothing due to being a dunken monk. Practice makes perfect so get drunk every night until the match and pick fights with progressively bigger and bigger fat dudes each day. By Saturday, you will be well trained in street fighting and be ready to beat all the heavy weight out of shape fat guys of the world. Trust me I have never lost a fight! 
Essay Pro