[jff]

We got Keen 4 bundled with this Gravis joystick: http://mocagh.org/forsale/gravis-back.jpg

I played Keen exclusively with a joystick for years and was pretty good at it. If you sat me down with the exact same joystick I could probably still play pretty well, but the much looser feel of a modern joystick would screw me up. When my brother and I would play Keen, we'd make the plastic on the joystick case creak from the frantic maneuvering!