yes
nowhere because there are no cheat codes for halo 3
there is no codes in halo 3 ... -.-
Halo 3 has no cheat codes, but some people have modded maps.
There are no cheat codes for Halo, only mods.
You can't because there isn't an invincibility cheat for halo 3. a matter of the fact, there isn't any cheat codes for halo 3 that i know of. maybe a few
sadly there are no cheats
There are no cheats for halo 3 there are only mods and hacks
sadly,no bungie(creator of halo) did not want to put cheat codes in any of the halos because let me give you an exapmle. unlimited ammo in matchmaking. unfair isn't it. we all wish they made cheat codes.
Cheat codes.
http://www.gamerevolution.com/ http://www.cheatcc.com/ http://www.ign.com/
the nearest you can get to it without hacking is to put it on easy otherwise there isn't any codes or buttons