love the title/theme haha
The graphics were nice, and it's a solid gameplay loop. If I could offer some criticism, I think adding some shadows under the mech/enemies would do a lot for spatial awareness, and I would personally swap the UI for the weapon selection to match the side of the mouse that the player has to click to fire them; currently, the AA is RMB but is on the left of the weapon UI (and conversely for your primary weapon) which makes selecting your weapon a little less intuitive than it would be otherwise.
EDIT
actually on a second look, there are shadows in the screenshots but they weren't rendering for me...weird. I wonder if this is a bug?