At long last, I know why I can't play Karateka with my PS3 stick!
Using this:
https://archive.org/details/MECC-A240_C ... ector_v1.0
I can very clearly see that the PS3's analog stick does NOT use a square gate, but instead one with rounded corners.
Given that Karateka expects very square corners for running (up + right), this is a problem. LOL
Are there any analog sticks (short of something like a flightstick, which would feel ridiculous) that don't have this issue? What are others using on the IIe?