Simple 1500 Series Vol. 20: The Puzzle is a single-player casual, arcade, puzzle game in which players manipulate a character controlling a cannonball to shoot and match colored balls. The core mechanic involves aiming and firing balls of different colors to create groups of the same color, which are then destroyed, with the goal of clearing all balls from the level. In this game, the setting is a fantasy-themed world rendered with cartoon graphics, where players engage in puzzle-solving through strategic shooting and matching of colored balls to progress through levels. It stands out with its unique control mechanic, where the distance of the shot is determined by how long the player presses the button, adding an element of skill and precision. The game combines classic match-three puzzle elements with innovative aiming and shooting dynamics, providing a distinctive gameplay experience.