Not a game and a pretty dull movie
First off, label the submission correctly, this wasn't a game but just a movie.
Secondly, while the quality of the animation wasn't terrible, the movie had no suspense or climax. It was simply a guy walking through several doors shooting several others. Try not to keep every encounter repetitive to the next, maybe allow the main character to miss or get struck by a bullet himself.
Keep trying, and maybe make a decent piece for Madness Day which is just on the horizon.