The game have a solid fondation; but there is no gameplay in this game. it is more a walking simulator and I can see that you use external assets (witch is fine) but the GUI Don't correspond of the art that you wanted. also, the movement seems fine, but when I jump it's glitchy because you basicly just clip into your body and see yourselve. When I spawn WASD the arm is glitchy and the lighting is pretty not as good
What I like about this start is that you can modify to make it better, and the map looks fine for a good game. and the 3d model of the mecha is really good. I like the rockets that you shoot from your arm: the explosion is fine but you should add sounds.