|2 players is best for that head to head feeling.
Simply play Jenga, after your opponent sucessfully removes a piece and places it on top, take one shot. Your opponent then takes a shot if you sucessfully remove a piece and place it on top.
If you're the unlucky git that knocks down the tower...3 shots for you my friend.
Remeber that this game gets harder the longer it goes on...and the longer it goes the drunker you get.