I have to say, this last AFM addition is actually my favorite part of the entire project, its just plain awesome that you did this and it makes it so so cool to have the ship and the voicing of the aliens coming through. I love this- absolutely brilliant.
You hit on something really cool, you could plant a ton of "easter eggs" in the game, opening up brief modes that work with the play field you have, thinking more about this if you had access to animations and sounds from some of the best games... wow- its nearly limitless- throw in a little MM here, a bit of that there...
Great work!