Yay
You should add some music or something for the heck of it. It is a bit too "quiet" in the game if you know what I mean, hehe. Other than that, some of the pieces to the mechs are really small, and its hard to tell where the pieces go. There isn't really any customizing to the mechs besides color, so you ought to add some more optional parts like guns and weapons.
I know I'm ragging a bit too hard, but I'm just trying to help you improve for your next installment! I'll look forward to it. =)