Re: foot pedals
We set up a game with foot pedals for a league tournament, you had to play the game from 3 feet away, couldn't nudge. It was a lot of fun, but it was pretty hard on your ankles. Also took some custom wiring on the game. Nothing major or a big deal, was easy to add and reverse, but it was a tiny bit of work, nothing you could just slap on instantly.
It did work really well though, everyone enjoyed it. Might be fun to set up one game with it that way, and then make *everyone* play it with the pedals for that night.