Definetly shows promise
Though I didn't like the stiffness of the figures' movement when they started out (It all seemed a little too 'card board cutout' to me.)
But much to my delight they soon seemed to loosen up, as you incorporated some of the roto-scoping (If it wasn't then you have a keen eye for animation, good sir) and smoothed out the motions.
May I suggest a higher framerate? That might even things out a bit.
Anyway. Great sound effects, graphics, and overall performance.
And people, why does it need a plot? It would be nice, sure, but can't you appretiate the animation for what it is? Maybe its more mysterious and (might I add) FUCKING AWESOME without one? Things don't have to be dragged out. Some of the best animations (to me) are ones that don't NEED a plot to explain what's happening.
... though it might be because My IQ is higher than 70?
-GKG