Disgaea 3 - Playable by how much?

Perhaps you/I can just add some informative output on key presses? Like print "Triangle" whenever that is detected. And if we suddenly get an endless spam of "Left analog stick down" then we know for sure.

It's not about it sticking, but rather about what the game registers. The only reason I saw for this behavior would be the same reason buttons stuck previously, but I don't want to change it if it's just going to break something and I can't test it.

Gee I sure wish someone would make homebrew tests that actually test useful things...