Lemme break it down...
Graphics= Pretty unimpressive. The drawings were simple and the was little action. It doesn't matter whether this was the intent, if it doesn't work, it doesn't work.
Sound= No sound effects, just a mellow song playing in the background. It would have had a nice atmosphere if the animation had been good.
Interactivity= Play/replay buttons, link to a site.
Style= It COULD have had style, maybe if people had been half-illuminated by the rocket's glow, or if it had some really cool omninous scenes with the rockets blasting off in the distance, but it didn't. Instead we got the tired cliche of a single tear rolling down people's cheek's.
Violence= None.
Humor= Not the point of this movie.
Overall= Dissapointing. Had the animation and drawings been better, this would have been worth watching, but without them, this is just a blank envelope with an anti-nuke letter inside.