i wont to beat sethephroth but get ko in 2 hit is there a trick or do i need to be hi level if so wat level.

Do you mean Sephiroth in Kingdom Hearts 2?

Yes, Balbage.

A high-ish level would make the battle easier for you but you can just as easily defeat Sephiroth on a low level as long as you have the right Abilities and Items/Equipment setup combined with getting Reaction Command timing and attack timing right against him - with these you can easily avoid the majority of his attacks except for that one that I cannot recall the name of that takes your HP and MP down to one each which can easily be solved with the use of items to restore HP and MP.

((I actually thought there was a forum/sub-forum for this sort of stuff, not to be posted in the Discussion Forums... must have been imagining things again....))

How to beat Sehpiroth.

I would know. I have beaten him millions of times on both of the KH games.
Here's how.

First you must be at least 58-68, i beat him at 58 and very esily.
Now you will need a long sword, Ultima Blade will do fine, if you don't have it, then Oblivion.
Now you will need a lot of Combos for Sora an Elixirs, mega potions and mega ethers if you have no Elixirs.
Next, when you enter battle, keep pushing Triangle (This will happen again in battle, so be ready) and dodge his first attack.
After this happens (If you have the combos, they are very important) Get him in the air with your blizzard attack and keep him there as long as possible by attacking.
When he summons the death Magic, right when you lose HP, use you Elixirs (Or the items listed above) and heal. Then start the process over again.
Now, when he is dieing and begging you to stop, he will the Promised Land attack from KH1, but this time it is slightly stronger. Keep healing with the items and you'll beat him.
He's not that strong, if you think about it.