I remember seeing this one
A few months ago, I don't know but I forgot to review it, so I do it now.
I really liked it, specially the voices, pretty high quality sound, and also your art style is cool. Simple backgrounds but characters are well animated and drawn, plus the lip-syncing is very accurate, which is not something that is very easy to do, and I also like how you used only songs of the Audio Portal.
I will give you a 5/5, and a 9/10, took 1 point off because well, it's a story you didn't create yourself. The "you are the demons" part made me actually laugh the first time I saw it, but again, it's not your story. Still, that's no reason to give you a low score.
Okay, I hope you create more stuff in the future, looking forward to your next flash.