If you're like me (and, you probably wouldn't be reading this site if you weren't at least a little like me), then you probably will occasionally play a game part way through, forget about it, and then pick it up again months (or sometimes years) later. So what do you do when you go back to a game like, say, Quake 4, and just want to get through the rest of the story?

Well, you could press the Left CTRL + the Left ALT + the "~" keys all at the same time to bring down the Console. You could then type the word "Undying" (without quotes, natch).

Done right, you'll get a confirmation message, and the result?

Your health will take a beating (like normal), but can't ever dip down past 1 (not like normal). Which effectively makes you immortal. You should be able to finish the game now, no problem.