Our game will be a 2-player game in which the players are puppies, and the objective of the game is to throw and catch a Frisbee at each other. The game ends after a set time or if one of the players fails to catch the Frisbee and the player who did not drop the Frisbee is declared the winner. The puppies will be able to move freely on the horizontal axis, but cannot go beyond the invisible vertical line drawn in the middle of the screen. There will also be treats falling from the sky which the puppies can catch for extra points.

http://www.bogost.com/games/student_atari_games.shtml