that was pretty good. it could you some improvements.
like when the blue and white mech comes out, the back ground could be more sleek. also with the mech that fires the volley of missiles at the purple mech the should come out and let you see the empty silos. when you look at one that had just been fired, there is still one in there. also you could make the whole thing more smooth and flow nicer.
overall pretty good.