I need help with coding

Hey guys, theres this game i play like almost every day!! and its called pr2..i wanna hack it like get items, and more... if i show you youll know what i mean, but i need help with coding hacks, and stuff like coding a game to hack it, this game you do not have to download it, it is on a site, can someone please help me on how to code and what the heck you need coding for? and how do you use it on a program? PLEASE HELP ME! MY EMAIL IS Devious_Scorpion@yahoo then you add . and a com, please post as much as you can to try to help me