The majority of the game is setup. A table of pies hands out free pie throwers to anyone who wants them. You can then throw the pie when entering mouse-look mode. The pie will leave a pie smear where ever it hits. As each pie is thrown, the pie on the table disappears. Each person gets 5 pies to throw in the game. Since people can still throw pies outside of the game, the table doesn’t count those extra pies. The last part of this seems to be comming up with a point system.