Chain of Memories What did Marluxia mean when he said....

http://www.youtube.com/watch?v=8xMD-_gN8ds

When you defeat his last words were "So this is the heart of a hero" I want to know what he really meant by that.

I'm also a Marluxia and Larxene fan and I didn't like that they don't have much devolopment like in the novels Marluxia was loyal to Xemnas when Larxene joined and was in good terms with Larxene when Larxene joined and Larxene didn't want a heart because it was painfull.

I was thinking that they betrayed Xemnas for more that just "I want more power" What do you think? And the my first question, too.

 

Well Sora was known by the Organization, mainly Marluxia, as the Keyblade's hero. I guess Marluxia underestimated the power of Sora's heart and realized it's strength the hard way. A hero is one who fights for others they care about no matter the odds. Sora wasn't just fighting for himself he fought for Namine, Replica Riku and everyone else. That powered Sora to go on and defeat Marluxia.

In KH1 during Sora's awakening the voice, who we now know to have been Mickey, said "You hold the greatest weapon of all". It wasn't refering to the keyblade, but his heart.

 

I have to agree, most people would not think into speaically Mickey meaning by his heart not the keyblade. There are many questions of things from Kingdom Hearts... As you said, he fought for others. You can tell he was fighting for Namine because of something Sora said... I think it was like... Well I am forgetful, I'd edit if I recall what it was... -_-;

 

...wait, how do we know that mickey was the voice during the awakening?

 

Ultimania a collection of information about 358/2 and other KH related information.

Which would make sense, Mickey has a easily recognited voice and by letting him being revealed so easily would kind of ruin the mystery. If you also notice none of Mickey's letters are read just like the voice's lines.
Mickey was also able to talk to Riku throught his heart in CoM so I've suspected this was true for some time.