Jumping Lizards!
I'm guessing that was supposed to be "leaping lizards". Y'know, little orphan Annie's favorite exclamation? Though why a gun-toting blue robot would be using the same catch-phrase as a little girl with curly red hair is beyond me.
Nice animation, though I also noticed the robots being damaged and falling in the same manner. You could have mixed it up a little by mirroring the animation so some fall with their left foot out, some with right.
And like many others mentioned, the last battle scene was very choppy. LIke when the bad guy threw that shoulder thing at Gunchest, I wasn't able to actually see a dodge. I just assumed that Gunchest dodged because he didn't seem to be hit.