this isnt exactly a game, but its funny.
dont you have some pal who is a spiller? someone who acts like hes the toejam, the one who drinks more, then in fact he is just acting drunk, and when no one is looking, he'll throw away his drink. this person knows nothing about booze and will drink whatever you give him.
Now here is what to do to get rid of him:
1.) Buy some non alcoholic beer like O'duls (thats what I bought and worked)
2.) Open a few BOTTLES of heineken or some kind of ALCOHOLIC beer he never drinks. (cans wont do)
3.) Fill the bottle with the non alcohol beer, and put the top back in with a hammer or something.
Now, when everyones drinking, make sure the spiller picks the non alcohol beers in the good beer bottle, and watch him act like hes drunk! after a while of watching his toejam acting, tell the sucker the news. Show him the empty O'duls bottles. See his face. Priceless.
*works better if your record the whole thing, including the switching process.
If this dont work for you, put some acid on his drink or food, and watch him have a REAL trip.