Helllo

I looked at your notes regarding Pitch in OrgMaker (very interesting stuff)
Have you ever done any testing with the wavedata from Doukoutsu.exe, since it's different from the OrgMaker one?
(Org View, OrgMaker 1, and Cave Story+ all use the same Wavedata as Doukutsu.exe)
I compared them in Audacity, and aside from some minor, but noticeable differences in the waves, they mostly seem to differ in volume
When you shoot an NPC this timer is set to 16 and decreases once per frame. When it hits zero, a damage number is created from the sum of all damage dealt in that time period. Shooting the enemy again resets this timer, i'm *pretty* sure.
So, in order to enrage it, you need to hit it once, then hit it once again within the last 16 frames of its flinch state. Or if you prefer, anywhere from 25 to 40 frames after the first hit.