I am by no means an animator but I thought this was quite good. Everything was well animated and I didnâEUTMt even notice that you used tweens until I read it in your description. The flow, style and music choice made this an excellent movie.
The story was also quite good. Even without dialogue or text, you still get a sense what is going on. Yet you donâEUTMt bog down the viewer with pointless details, you give simple and clear points for the story without breaking the flow of action and tying it in with the music. Like an intro of power going out in a city or a symbol on a helicopter with another robot spying on the ball. You also donâEUTMt lack of story altogether and have just fighting robots like so many other animations on this site. You didnâEUTMt overdo it and you didnâEUTMt miss anything.
One of the few flaws I noticed was just a couple of parts that were transparent when the main character was returning to the city between the two fight scenes. One was with his eyes and one was with his hand. This was at 2:45 and 2:59 on your youtube version. But this is so minor, that it doesnâEUTMt take away from the movie.