I have been recently playing okami on my ps2 with a dualshock 1 because that's the only controller I have that works on my ps2. My ps2 was a hand me down and it didn't come with a ds2. When the game told me to press harder on the buttons to jump higher it actually worked. I originally thought...
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