Chain of Memories Marluxia...and other things...

I greatly apologize if this has been asked/answered already, but I've looked a bit and havent found anything on it.

Here's the main thing--I'll be blunt and say that I'm having issues beating Marluxia in KH2fm. Mostly just because I get hit a lot regularly when i fight people which...doesnt...work...
If anyone has a good strategy or anything i'd appreciate it.

Another issue--
everyone knows those black fungus in kh2fm? Right so...how do I know if ive killed it? I believe I've fought every single one in the worlds, and they started showing up in that big 1000 heartless battle area, thing...but they just disappear as soon as i activate them.
So, I figured I had to like officially kill all the ones in the worlds or something...and I thought I did but I dunno how to tell. Specifically, the one in Port Royal, I completed the whole 'guess which one is the real one' game until the thing was dead, didn't mess up at all and did it with a really good time (i forget exactly what it was) but I dunno if i 'killed it' because it's still there. Just not sure what to do. (again, sorry if this was posted already.)

 

For Marluxia i just guarded or reflected his attacks. Glide is also useful to dodge.

If your need a good guide try here.

http://www.kh-vids.net/showthread.php?t=9652&highlight=Marluxia+guide

It's also good for details on the Mushrooms.

 

You know you won the challenges of the mushrooms when they throws lights at the air.