Played until the End of the Demo, altho after the first Boss it just turned into me standing there and shooting Enemies essentially.
I don't know why this is on Early Access, this is not Early Access ready.
You have Empty Levels, Empty UI and Menues, Music is way too loud, pretty much all Models are Placeholders still.
There are no Bugs, which is a Positive. No Idea why I can't walk during attacking, if you're afraid it'd make the Game to easy, up the speed, other Stats and Intelligence of the Enemies. Some of the Props you spawn in your otherwise empty and Flat Levels have Collision when they feel like they shouldn't, I got stuck on some Floor Panels I should be able to easily walk over.
Overall the Player Controls feel too slow and static compared to the Type of Game I think this wants to be.
Only some Enemies have Healthbars, Drones and similar don't have anything. Scrolling on the Level Select Screen is atrociously slow.
In every Menu you have a huge Amount of Screenspace just black, if this isn't designed for mobile first, consider a different Layout, or filling these Parts with something interesting.