it is a special hidden boss which can only be obtained by completing hollow bvastion - if
you have a look on you tube it has a couple of vids how to do it

I can only remember that you have to use stop to attack it coz it keeps moving so fast
P.S. IT IS HARD I WARN YA

some what to the other person said to, if you haven't figured it out yet, you can use the
"stop" command to stop it becasue it is fast, but i never used it, you have to lock onto
the clock tower and hit the hands in a certain order i have forgot that sorry, then you
hit it until it dies,

you can look up on youtube like,

beat secret clock boss or something like that.

At the start of the battle, cast Stopra on the cloack tower's clock hands (the joining
point). Keep doing this when ness***ary, I tend to do this every chance I get,
actually...but I'm weird like that....

When the orb thingy is:

White=Keyblade Strike
Red=Fire
Blue=Blizzard
Yellow=Thunder

And deflect/dodge his attacks whenever possible. Hope that helps.

same as first person said go to agrabah the carpet go

as for the drain health thing that the phantom does, use aerogo (aero) to stop that. you
can tell when he will use it because he does something that looks like he is pulling
something out from the top of his cloak (where his head should be, but isn't)

get stopra from hundred acre wood, then use it on the clock tower to stop the death
countdown. then use the attack thing that mikepwndu gave u.