What happens when you get 100% cuse I got 99% even with a walkthrough, can you believe that i brought that piece of crap for a tenner and still not get the full wack, so can anybody help?

You might wanna put a spoiler alert on this thread. As far as I know, you get a scene where Tidus comes back. I actually haven't been bothered to complete it over 70-something percent, but someone I know has. And I think that there is a Thread here that has screenshots from what you're asking about too.

Rude666 --- just calm down. People are way too obsessed with trying to get 100% in one shot, which I think is crap. You've played through once, maybe more than once. I hope you started a New Game Plus. Now, in Chapter 2, just give the Awesome Sphere to whichever group you didn't give it to in Chapter 1 and you should immediately have 100% upon return to the Airship and saving. Feel free to skip all other scenes / dialog-skip except for the following --- meet with Maechen in Chapter 3, press "X" repeatedly when Yuna is alone on the Farplane Abyss at the end of Chapter 3 to see Tidus lead her out and press "X" repeatedly when she's alone again after Chapter 5 complete to summon the Fayth and say that yes, you want to see him. FF_Fanatic is not entirely correct --- Tidus comes back in the Good Ending, which I assume you've already scene. Getting 100% will give you a small bonus scene afterwards --- it's really very short and not even something to get all that worked up over. It also adds the message "Thank you for playing" to the "The End" screen.

Thanks Agent0042 I never thought about changing the Awesome Spere to the other group which I will definetly try in the future, and sorry FF Fanatic I will put the Possible Spoilers next time.

SCROLL DOWN AT YOUR OWN RISK. MAJOR SPOILERS AHEAD OF THIS POST.

Yui --- I don't think there's really too many spoilers there, most of us here can't read Japanese anyway.

OMG I DONT BELIEVE I MISSED THAT THATS JUST SO HUGE I PLAYED THE WHOLE GAME AND MISSED THAT I MIGHT KILL MYSELF.................................joking

Yui --- I don't think there's really too many spoilers there, most of us here can't read Japanese anyway.
I can't either. But it's still spoilers, especially for people who haven't seen the ultimate ending, and don't know what is it like. And also for the people who don't know whether Tidus is coming back or not.

My x-2 has gone missing along with the memory card that has my save files on it. I'm really very angry. Really.

OMG did you