here on Windows10 can't use a USB game pad.
is this a demo only issue or it's a keys game ? thanks.
Any Xinput compatible controller should work, You can use some apps too to remap your usb pad in case it's not any official mode (Xinput, DInput) Or use keys: WASD GH (Player 1) / ←→↑↓ "0""3"(Player2)Hope it helps!