A few tips
Not a bad animation, sound effects are well timed, and the animation was nicely fluid. A few tips: maybe add a background song, one with a fast beat, like techno. Try to add in a few blood effects, like when the red guy falls onto the block thing. And for next time try to make the enemies move and react to the soungs the red guy makes, instead of just sanding there letting him kill them. Other than that, nice job!