The main objective is to sink balls in each level and reach the predetermined scores to progress ahead. However, you'll have only several "lives" and every error can be fatal. After each stage completed, a bonus stage will appear, as well as the chance to earn extra balls. You will need a good target on the parquet block!
Side Pocket has different versions for various platforms. The original Famicom version is an action game where you compete against the timer trying to get all balls in pockets and earn points.
The later NES release introduces modes for 2 players with two variants: 2P Pocket Game (the traditional mode) and 2P 9-Ball Game, where the premise is to sink 9 balls before the other player makes them first. In 1P Pocket game, you need to clear four levels with alternating ball layouts, starting from City class and all the way to the World Class.
The Game Boy version is a completely redrawn game featuring 1 or 2 players' actions with two game modes: 9-ball and Pocket. The Pocket mode is generally similar to NES version.
Side Pocket for Genesis and SNES features improved graphics and sound. Pocket game mode is reworked to include more stages and trick shot layouts, also featuring different cities in the U.S.A. New modes are Trick game and Jukebox.
Game Gear version of * Side Pocket * is basically a toned-down Genesis version.
Wonder Swan features one and two-player play on a single device. In the single-player mode, you choose an avatar from a menu and need to beat the remaining opponents. The player and CPU then take turns in hitting the ball.