There is also a typo, so when you check the retroarch.cfg file, make sure the last lines for P1 and P2 are:
input_player1_r_y_minus_axis = "-3"
input_player2_r_y_minus_axis = "-3"
Okay, hope that helps some people who may be confused, and if I’m wrong on any of these points (I very well could be) just respond below or message me. Also, I appologize if this is in the wrong section; if it is I’ll gladly move it.