Game cleared! All yellow gems acquired, A ranks on all stages, and max red gems! Note: It's possible to achieve S ranks on all stages, but it's a VERY difficult task. To those who attempt it, I wish you luck!
I may try the new ram site, and download more RAM to my Switch. Not sure if ddr3 is the right ram
for it tho. Edit- no it uses floppy Ram, just like @AncientBoi