hey friends forgive me for being so stupid but I have been looking for ways to stimulate my brain waves but being 72 has limitations especially after being brain dead for 3 hours !

anyhow my grandson brought me a playstation XBox 360 and 2 NCAA football games 2010 and 2011, so I started playing as freshman and pretty much guessing through the system (still dummy) can someone here tell me how to use damned cheats, my grandson gave me a cheat code KILLER NUTS to use my beloved BUCKEYES, but I will be damned if I know how to put this into the game can any of you gamers help !