Owned.

Also, I actually think this is an excellent idea. For testing purposes, I suggest the Xbox 360 Controller for Windows. It is the best rumble-enabled "joystick" I know of, and it's fairly inexpensive. As far as actually making the game communicate with the rumble device, I have no idea how to do that. I'd suggest making an app that runs alongside JJ2 and sends the instructions to the controller. Just my two cents. ;p