http://bugs.winehq.org/show_bug.cgi?id=14919
--- Comment #6 from Fred Wittekind IV rom@twister.dyndns.org 2008-08-21 07:38:22 --- The 4 gamepads I have where actually purchased specifically for Atomic Bomberman (the more players you can get into it at one time the better). My college roommate also purchased 4 identical gamepads, to get 8 players in via a network game between our two machines. Have spent many hours playing that game.
So.... Quite sure it worked with 4 game pads in Windows.
My old college roommate still has a Windows box he has dedicated to Bomberman (MS EOLed the game pads, and there isn't a driver for them on newer versions of Windows) So, I might be able to get him do do some debugging under Windows if that would help. (Would need to know what you would need of course)