Update and the beginning of a long road ahead (arc version)
Same!3 Mega Drive Version (Normal)
https://imgur.com/uI72OCH
maximo - 2,969,620 - 11 - On - normal - Kega Fusion 3.64 (JP region)
Same!3 Arcade 1P
https://imgur.com/YYBba7n
maximo - 521,230 - 01-05-02 - Yes - ARCADE 0.195
Same!3 Arcade New Ver!
https://imgur.com/CpX6Mzc
maximo - 925,180 - 01-07-02 - No - ARCADE 0.195
Same!3 Arcade 2P
https://imgur.com/8Ij6syV
maximo - 3,072,340 - 02-02-01 - Yes - ARCADE 0.195 (score done on 1p side)
Finally got autofire to work for 1p version by borrowing my bro's arcade stick (since keyboard wouldn't register my autofire rates). My main goal is to hopefully adapt to the game via New Ver. and use those gains/strats to other versions.
*Edit 1: After streaming today and getting knocked around by the city in the 1p hack, I decided to try a credit of 2p, and surprisingly cleared. No-miss to 1-6, wrong weapon switch led to me losing a few lives and losing some lives till 1-7 boss. Was able to recover in 1-8 and get some extra lives thanks to a 2up, and then died in the middle of 1-10. Cleared with 3 lives left, but didn't make it too far into the loop. From what I read, 3/4 loops of same 2p!= 1 loop of same 1p so I may try to improve on that score in the future.