If this "Atmega32U4V" is16 Mhz, 5V, is compatible with MMJoy2 (joystick) firmware.
IMO - A better, more flexible option than generic "Arduino sketchs', unless you are proficient in programming.
But Arduino are not "plug-n-play" for computer, you need install IDE drivers to be able to flash files in then.
In
MMjoy2 package are drivers in "Drivers" folder.
https://sites.google.com/site/mmjoyproject/fajly-dla-skacivania