Thread:Vorknkx/@comment-1915529-20120523190003/@comment-1496755-20120705131627

It's true - I have noticed that the Window reacts to activating Quad Damage by surrounding herself with some kind of force field. I think there was some reaction to using Invulnerability powerup as well... but I'm not sure, I'll have to check. This is a good trick, actually. Most players expect to be able to beat a boss quickly with powerups but then it turns out the boss won't let them do it :P

For the Carrier, my favorite strategy is Plasma Beam + Quad Damage. It usually works pretty well - and the sustained damage gives you a good chance to interrupt the boss' attacks once in a while, buying you a few precious seconds. And after defeating the Carrier, I like to go out and take one last look at the lava-filled canyon - this is one of my favorite locations in the game :)

As for the Mummies - a funny thing about them is that on lower difficulties they can be weakened. As you damage them, they start losing limbs and eventually fall to the ground, being able to only crawl slowly, trying to bite your legs. But on higher difficulties, they remain fully strong right up to the moment they die. Ranged weapons are preferable - they hit pretty hard with those sceptres.