Woohoo! I made it through all 5 levels!
It was touch and go most of the last level, but I found a healthpack right before the boss. CrystalMother didn't stand a chance against me and my Torpedos! It took a couple minutes, and my heart was pounding, but she finally exploded. After much fist pumping, I went through the door only to be greeted by the biggest let down of an ending ever.
Just kidding, I know the ending hasn't been implemented yet. The temp ending is hilarious in its own way, though.
Anyway, it was an epic run where everything went right. Probably helped that the boss projectile patterns were easier than I was already accustomed.