Highlight 'Fighting' on the 'Options' screen and then hold L and press C-Right, C-Left, C-Left, C-Right, C-Down, C-Up, C-Up, C-Down, C-Left, C-Right, C-Right, C-Left, C-Right, C-Left. If the code has been entered correctly a line of numbers will appear at the bottom of the screen. This code has to be entered every period and almost every time you check someone a fight will break out.