very amateur
the story is a mess, I mean the text seems to be from a bad movie, the sound are mostly annoying, and I can't help but notice you used the same yelling sound over and over, the result is not that good
On the animation side it wasn't all that bad, but you use about 95% of already animated sprite and special effect so beside a thing or two, so I can't really judge you on that.
Sprite animation are not everyone cup of tea, but some people can pull it off and make some great animation, a good story line, and try and add original content for a change.