You live life with significantly more "cheat codes" than the rest of the world, now what makes you think you aren't already living with "cheat codes" you aren't aware of? Since you could also program your reality to enjoy the benefits of the "cheat codes" without actually being aware of them, then there's a bit of cosmic irony to your statement.

But what's proposed isn't any cheat-code, it's The cheat-code. I remember playing one of the Dooms once with its god cheat.. for a few minutes.