Plug in a Gamecube controller into a USB Mayflash adaptor. The other is a third party “SUPERPAD” from InterAct.īoth controller D-pads work fine when tested with Joystick and Gamepad Tester: Tested with two different Gamecube controllers, I don’t think it’s because I pressed the button for too long because I can press any other button only once with ease. Pressing Right: Prints 13, 13, 15 and 15. Pressing down: Output prints: #14,13,14 and 13 I was expecting it to only say one of these numbers, and only once per button press. Output prints: Controller pressed buttons #15, #14, #15 and #14. Here’s what the Output says when I press each button and print out which button was pressed: When I use a Nintendo Gamecube controller that’s connected to a USB Mayflash adaptor, pressing only one d-pad button at a time results in multiple buttons being pressed at the same time.