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At its most basic level, Zero Gravity can be thought of as a Pong game, as the player controls a bat which must be used to hit a ball as it comes towards you. The main twist is that the gameplay is completely 3-dimensional, with control over the horizontal and vertical positions of the bat. The game uses a split-screen view, with the top half viewed from the perspective of Player 1, and the bottom from that of Player 2, even when only one of them is human.