Achilles isn't crushable. Even with the perfect parabomb, the explosives explode and the beams don't fall. Or, the one time they actually did, the first one fell backwards and i was stuck. Either make the material crushable or remove it.
I would like to "evolve" every few ranks up to look more like a Princess or a Queen or whatever rank. Mechanics and area of impact can stay the same, but character evolution would be nice.
I think the music is perfect for the style of the game, don't know why others have a problem with it.
Finally, being able to see what each "enemy" looks like after you unlock one of the achievements for it would be very helpful. I'm not sure which one Orion is.
for some reason my side-lasers don't shoot consistently if i am using space. it works fine for the mouse, but my index finger gets tired of holding it down level after level.