20000 rerecords later I got something I'm satisfied enough with. Might mess around with some more playaround stuff later but for now I'm happy.
Not a finished run, been a while so I don't remember frame counts, but better navigation around ledges above you.
Saves 5 frames on the first mothership kill but isn't able to maintain this timesave to the next loop.
Falling to avoid this guard is completely unnecessary just not hold right for so long you end up in his vision.
cleaned up version of #7327: Sam_Underscore's GBA Original Memory Game "20 Cards" in 00:39.31 by 10 frames
20 frames saved at about frame 19000, probably also applies to other segments, also probably not extremely optimized.
Saves 1 frame at the end of bank 1 but loses time to luck in Bank 3. I could just intentionally delay entering the door a frame but then I'd just come out even. Uploading in case anyone ever happens to find another frame before then.