Awesome! This game really creates some nice intense moments! I also really love the art and music.
My one suggestion would be to experiment a bit more with the map design, since the narrow corridors can feel a bit unfair as enemies can shoot you from off screen and there's no way to dodge them in the narrow bits of the map. The open areas offer a lot more options for startegy and work better with the other mechanics, especially when losing your engine can sometimes be an immediate death sentence.
Really well done, this is a great game with a lot of polish!