I liked the gattling gun + railgun combo, it reminds me of a famous set piece in Metal Gear Solid 4! In this case the railgun has a very short cooldown yet is powerful, so it’s really worth it training to aim and one-shot enemies with it for efficiency. Because of the lack of feedback on shot (partly due to lack of sound) it’s harder to tell when you hit with the gattling, so it’s a bit less satisfying…
I also had difficulties understand the right gauge works until I’ve read the description mentioning the shield (a visual feedback on shield activating during iframes would help).
Nevertheless it’s quick and easy to take in hands, and just does the job! I love the homing missiles which can do crazy trajectory bending to hit their targets!
(also second 3D game to run smoothly on Linux I’ve found on this ja, again made with Godot!)