This run was brutal, and extremely challenging. But I did it, and it was in part thanks to a few resources I looked up and utilized mid run:

https://www.neoseeker.com/matrix/faqs/67150-enter-the-enemy-boss-dinosoid.html (This guide was useful because it told me about extra SG rounds in Revolving Restaurant that can be used to make the Agent Helicopter boss fight at the end of Airport a little faster. I looked this up too late and didn't want to backtrack but for future runs and YOUR run this could be very helpful)

https://www.youtube.com/watch?app=desktop&v=Mzr9_NdGSjE (North Point 2 is absolutely one of the hardest levels in the game, and this guide doesn't make it less difficult. But having a path to follow is better than nothing)

(I used part 5 to learn the best way to do the Agent Helicopter fight, strafing and knowing the pattern was huge. I'd assume the rest of the videos in the playlist can be adapted to the speedrun)

Hard mode is no joke, and doing all the levels requires a lot of patience. But it was incredibly satisfying to do