About cheats, it should be good if IGN check the codes BEFORE posting them... A lot of them do not work (mostly all the "giveX" except for alien vehicules and perhaps one or two others).
Same thing for the goldengun and 2/3 other codes for DLC on CONSOLES !
Thanks anyway for the try...
For the posts just above, chy using cheat is for noobs ? Why can't you use cheat ?
I finish the game at 97% and start a new one in hard with cheats.
It's still fun and I still die (I don't use the immortal cheat, of course, this would be totaly stupid).
When dev add their own cheats it is good because you can always find some trainers, so, good point for the in-game cheats !
By the way, there is no cheat to suppress the notoriety completely ? Too bad, it would be the most interesting (shooting cops without being chase XD).