Zero Mission is fucking peak???

Guy who asked for a game to get into the franchise here, I've been playing Zero Mission this whole afternoon, and I'm having a great time. I love moving through the map and backtracking and stuff. It's kinda maze-y and sometimes I struggle with progressing and stuff, but when you figure it out it feels amazing. Right now I unlocked the little ceiling rail things and beat the worm thing in Kraid.

Since this is a remake, though, I wonder how it would be in the original game. Kinda makes me thankful I don't have to go through whatever jank the NES game might have