Users who pre-order the game will gain access to the cheat code. Here is an overview, via Bethesda Softworks;
We’re turning up the heat in Rage 2 with the “He’s on Fire” cheat code—no joke! When enabled, legendary voice artist Tim Kitzrow takes over to narrate every bit of the insanity. Now you can face off against your foes with a familiar voice cheering you on – you can do it!
Watch the trailer below.