I have no idea how you guys do it. It shouldn't even be an option on the screen. When ever my friends change it annoys the hell out of me. PLAY IT LIKE NORMAL!! All kiding aside though one of my friends just can't play unless it's inverted.

iduno depends, it seems almost every other game has a different idea of what is inverted and what is not. So In the beginning I usually just play around with the camera and find what feels right for me.

Always, I can't play if up is up and down is down. Gotta be up is down and down is up, it just feels right

I used to play inverted controls all the time when I was younger. Then I woke up one day and couldn't play inverted anymore. I don't know what happened.

You crazy, I like you but your crazy.

Nice try Drew >_>

I play inverted on gamepads and normally on mouse + keyboard. I started playing inverted during the GoldenEye days.

I've played inverted since Goldeneye. Something about Inverted works better in my mind. 
 
I've tried to explain it as pulling the thumbstick back, rather than pushing it down. Pulling back and pushing forward better explain why down is up and up is down. I have played default on a controller, Halo LANs where friends just say "Here, play for me for a bit." But I always switch back to invert. 
 
On the other hand, I play PC shooters on default. Because the forward is up mouse interaction is standard.

Nope, cant wrap my head around it.

God hates inverters!

I use to play inverted years ago, but then the evil was driven out of me and I play normal now.

I used to play inverted with every fps, then i didnt play any for a little while and couldnt do it anymore.
That part of my brain just stopped working during my hiatus.

I always play inverted.
I should try normal sometime, but it's just how I roll :|

Nope. I can't do that. I do play with my controls inverted for flying games though.

I always play inverted, on every game.

" I always play inverted, on every game. "

Always be Inverting, actually only on gamepads. People who don't invert are crazy....also max sensitivity................yyyyeeeeeeeaaaaaaaaaaahhhhhhhh....

Used to play inverted back in the PS2 days now I'm playing on normal, can play both still. In some games normal feels inverted because of the weird way the camera moves.

Inverted controls, except in flight games, are pretty much worse than the Holocaust.

I play inverted. It's much more natural to me.

Ugh, I swear, every time one of these threads pop up I say the exact same thing. 

You aren't pushing the stick up or down. Look at the stick. It is currently perpendicular with the ground. Unless you are holding your controller straight in front of you like a racecar wheel, the stick does not move "up" or "down", it moves "forward" and "back".
Go ahead, tilt your head forward. Tell me which direction you look. Go ahead and try it.
Did you look down? Huh, odd. What about if you tilt your head back?
You looked up?
Wow, that's pretty unnatural, hunh? Inverted controls, they're just not normal!
 
oh wait.

I play inverted. The reason is that the original Quake had inverted mouselook by default, and I have had it like that ever since. 
It feels natural if you imagine tilting your head backwards to look up, as if pulling the back of your head downwards. 
 
But, as mentioned, the main reason is that many older games had inverted the Y-axis by default. This probably means that us "inverters" are a dying race..

Playing inverted makes my brain hurty.

Inverted. Grew up on flight simulators so inverted seems perfectly normal..

No

I've been playing inverted for all my life but just two weeks ago I don't any more. It's really bizarre.

I play introverted! but not inverted!

God no, that's weird!

" Inverted for me too, just seems natural. If you wanna look up you tilt your head back. "

" Always, I can't play if up is up and down is down. Gotta be up is down and down is up, it just feels right "

Normal on FPS' and inverted in adventure/action games.

No. Bloody impossible.

in the old days i did. but i grew up

I always play normal for a shooter, but for any kind of flight combat game it has to be inverted vertical. That's the only time where up is down and down is up makes sense. However, I have a friend who always plays inverted for shooters and I asked him why once. He said it's because if you ever use a real gun (which he has) it's easier to sort of push down on the butt end of the gun in a way to aim it up, and vice versa. Not sure if it's true, but it could be one reason why it feels more natural to people.

Ugh, I swear, every time one of these threads pop up I say the exact same thing. 

You aren't pushing the stick up or down. Look at the stick. It is currently perpendicular with the ground. Unless you are holding your controller straight in front of you like a racecar wheel, the stick does not move "up" or "down", it moves "forward" and "back".
Go ahead, tilt your head forward. Tell me which direction you look. Go ahead and try it.
Did you look down? Huh, odd. What about if you tilt your head back?
You looked up?
Wow, that's pretty unnatural, hunh? Inverted controls, they're just not normal!
 
oh wait.

Inverted, the only way to aim.

Having played during the 64 era FPS, I used to use inverted.  However, when the new standard came around, I made the switch.  Got tired of switching peoples controls around every time I took the sticks.

Nope

I've always played inverted, you guys who don't are the real freaks. ;-p

Inverted controls is like moving your head and standard controls move your line of sight. Dont believe me? Put your hand on the top of your head and look up. Which way did your hand move?

" I always play inverted, on every game. "

I Don't. I'm normal.

When Ryan started playing during the Halo Reach TNT he refused to invite me because my GT is Inverted Gaming.

I used to, but eventually made the switch to Normal for most games (also, sensitivity at 10). Flight games are the exception though.