I would also have liked to be able to attack, at least damage enemy spawners so that they don't spawn as much tough enemies so constantly - that, or more downtime between waves. Later stages end up having about five spawners with varying distances from your ship, so it means enemies keep coming from each of them with no time to breathe.

edit: backloggd wiped most of the review for some reason. i'll write a new one if i ever go back to this game