The control is very interesting and I liked the models, but the mech speed is too slow. if the speed had been increased a little, it would be better.
The player doesn't get any feedback about enemy's condition, at first I though I don't deal any damage to an enemy. Also when I thought, that I had killed it (the enemy stopped moving and disabled fire) several seconds later I realized the enemy was still alive!
Even sound of steps would made the game more alive.