It's good, I like it, but there's a few flaws that keep it from me giving it a completely good score.
For one, the music seems out of place at times. Like the fight scene for instance. It started out pretty hopeful from the beginning, but it should've had a heavier, more desperate sound. Also, a lot of the music sounded as if it would be more fitting in a cheesy drama anime or some such, so I couldn't take it serious at times.
And for another, I don't mean to offend, but it seems painfully obvious that English isn't your first language. Please, for the love of all things holy, PLEASE find someone who owns English as a mother language. Have them proof-read your dialogue and fix it to be more bearable to read. Some of the dialogue seemed slightly awkward, like it was written using a flawed web translator, so you should definitely run it past someone else to see if they can fix it up a bit.
Lastly, there seemed to be a couple...I dunno, graphical mistakes? Things that weren't supposed to happen? They happened. Like Captain Falcon's name distorting off the screen at the beginning of one scene, and a piece of text being red when it appeared, but then in the last frame before it cut to the next bit of dialogue, it would turn the same color as the rest of the text. These are things that should be polished out in the final product.
All of the above pretty heavily damaged my opinion of the flash. You get half stars, sorry.