how do you get into mayhews office i tryed everything including the q-decoder i've been trying to push many buttons and nothing works i tryed the cheats to skip that level it doesn't work

You gotta point the hacking device right at the code box. Then, hold down FIRE and wait for all the numbers to appear. You're probably having stuck at HOW TO GET THE CODE. It's actually very obvious once you figure it out. All you do is hold down R. Before I got my Xbox, I rented Nightfire for GameCube. It made me mad not being able to use the gadget. Now that I own it, I laugh every time I pass it when I'm beating the game repeatidly. Of course, since this is an old thread, I shouldn't really help you any longer...you've probably figured it by now.