(1'41"5) Cave Story+ Nemesis Challenge speedrun

Personal best from 2020/04/20 to 2020/09/29 (beaten on PC) and 2020/10/01 (beaten again on Switch).
I'm on a quest to get all of my Cave Story+ time attack challenge PBs on video. (Here's the play.list of all of the challenges that I've already completed: • Cave Story+ (Switch) T... )
That means that for each of the challenges that I don't have recorded PBs of, I'll just have to set a new PB!
This is the Nemesis Challenge. Call it extremely difficult, call it unfair, call it poorly-designed, call it whatever...this challenge is certainly most people's least favorite out of all of the time attack challenges.
This run isn't great, but it's so hard to finish any run at all that I'll take what I can get. I'll certainly go for 1'3X" some day, but for now, I'm moving on to Wind Fortress.