Abstract: A game input device and game apparatus are provided in which a beginner can easily control the position of an object to be controlled and which can actually cause players to feel shocks produced when a plurality of objects to be controlled collide against one another through a simplified structure. Arcuate rotary type controllers are provided which comprise two controllers 30-1 and 30-2 rotatably moved along an arc in the lateral direction. Two players can perform input by using these controllers 30-1 and 30-2. Each of the players can simply move the corresponding one of the controllers 30-1 and 30-2 in the lateral direction. The objects controlled by one of the players will never move beyond the objects controlled by the other player. Thus, a collision occurs between the controlled objects. The present invention causes a collision between the controllers 30-1 and 30-2 to be transmitted directly to the players as collision between the controlled objects.