So I made some mini discoveries in the game whilst in Cataris.
Description: So I was trying to go through the game while using sequence breaks to avoid Kraid/Diffusion Beam.
Sometime after I got Grapple Beam I thought I could maybe get it backwards without difficulty but was reminded of the bomb blob that was placed there to prevent that.
So I applied the pseudowave technique I learned to get space jump early in Ferenia.
I used a dash melee with the little room that I had, and tried to find the angle needed to release a charge shot by morphing, and it worked! Once. I couldn't get it after that. (though I wasn't trying for that long before I went to upload this.)
Description: Ok, so after my potential backwards diffusion beam discovery, I decided to get it normally and fight kraid, which I was looking forward to because I wanted to delete his mouth with super missiles ala Super Metroid.
Anyway, I dropped in, and he was gone.
Everything seemed to be in its post-battle state, except the last stomach thing kraid shoots when he dies isn't there at all.
So, very confused, I got my diffusion beam.
Kraidless.