Great art, but gameplay needs help
First and foremost, the effort put into the artwork was great. If it were just for the visuals, it would be a 9/10. However, the gameplay was not as enjoyable as the presentation promised.
First off, as SterlingRon mentioned, even if you try to dodge, enemy fire hones towards you; this sort of defeats the purpose of moving left or right, since the attacks can still hit you. If you have a lot of enemies to deal with, you'll end up under a lot of enemy fire, so you're doomed to lose--if you duck, the enemies will breach; if you stand up and shoot, you'll be shot up and you'll die.
Also, it would be nice to understand better what happened when the robots became really close. Besides, if they could jump over the barricade, why would they walk so slowly towards you?