Line 98 - Line up 5 balls is a free iPhone game developed by Diep Duong. The objective of the game is to score as many points as possible by lining up the same colored balls on a horizontal, vertical, or diagonal line. The minimum number of balls required to form a line is five, and the more balls of the same color that are lined up, the more points the player earns.

To play the game, the player must first tap on the ball they want to move and then select an empty destination square. If the destination square is already occupied by another ball, that ball is now selected to be moved instead. After each move, three new balls appear on the board.

One of the main features of Lines is the auto save function, which allows players to save their recent game progress and continue playing later. Additionally, the game also offers an undo feature, allowing players to undo their last move if they make a mistake.

With its simple yet addictive gameplay and convenient features, Line 98 - Line up 5 balls is a great choice for those looking for a fun and challenging puzzle game on their iPhone.