Maybe it's just my unclean mind, but that thing there looks like a thrusting dong. lol
in anycase, it's well designed and well animated.
Also, I'm totally diggin' the weapons thing and the starry space scene with the ships. I would totally play that.
Only critz I got is you could kinda make the shine on the head of that machine on the first one move as it thrusts to improve the reflective look.
If you don't understand what I mean, imagine standing on a sidewalk and looking at a car drive by and watching the shine from a streetlight overhead move along the curve of the car as it passes by.