CloudStone Help

so this new facebook game CloudStone is pretty cool.

I got the game's swf file but i think it's obfuscated or something.
Sothink shows that it has no code.

anyway, i tried using swfdecrypt on it, it said it worked but it did not.

something peculiar about the swf file is that about half of it or more is just 0x00 bytes at the end when you open it with HxD.

any ideas?

it's not obfuscated if you dump it from Firefox's cache, but if you dump it from memory using swfmdump it has a bunch of 0x00 bytes