Ultimate Swish is a sports game that focuses on swish-style basketball play. The player directs an onscreen basketball player to shoot traditional and American Basketball Association balls at a hoop from different angles on a court in front of a large crowd. The goal is for the avatar to complete the shot without the ball touching the backboard or rim. Instead, the ball must swish through the net cleanly.
Yet the player can't control the avatar's physical movements directly. Instead, they must direct each shot using a red crosshair-style targeting tool. Two indicator balls on it direct a ball's final angle and height during a throw. The cross hangs on the right side of the screen.
The ball that indicates a wide or narrow angle direction rapidly moves left and right on the horizontal x-axis. The player must stop the ball in the exact spot they want for this angle. After they complete the task, they must repeat it with another ball along the vertical y-axis to determine the height.
Ultimate Swish gives the player 10 shots to complete in one minute. It displays the countdown clock, points and shots at the top-left corner. The player earns higher points for ABA ball swishes than standard basketball ones.