Cool to see anything 3D come out of this short of time, and the idea that after losing your armor you can move faster but are close to losing is a cool concept. Something to let the player know that they hit the enemy (noise, bouncing away, blinking red) would be cool to see.

It seems like it should be quite fun to play with mouse, but owning just a laptop with touchpad makes it realy hard to aim and almost impossible to attack (no discrete buttons on a trackpad, just the touch surface). Provided that it's made in Godot you may want to add an "attack with left mouse" controls, or, even better, add twin sticks gamepad support, which shouldn't be that hard.

All in all, nice game with the vibe of old game Alien Shooter and the like :)