What made it hard for me was the fact that the Space Pirates as an actual enemy fight like crap. It's feels impossible to consistently dodge and hit them.
Interesting I haven't played Dread. But Fusion literally most of the bosses are very difficult to defeat, but if you know tricks and knowledge of what to do their alot easier.
I have to play fusion at some point, but the price of the cartridge is deterring. I played dread and agreed that it is very difficult as far as Metroid games go but as I said, I can’t compare it with fusion. Compared to super dread is much more difficult. But I also love it a lot more and have beaten it twice and normal and I’m almost finished on hard.