I get an error when replying to the previous thread. Thank you for the infinite lives. I'm using a a 360 controller as a Kempston. The A button jumps and the B button fires. If the A and D-pad "up" are doing the same thing, I'll look into disabling "up" in RetroArch for the game. When the action gets heated, my left thumb can slip. If that doesn't work, I'll look into getting my Sidewinder hooked up to RetroArch.