Nice bowling game, one of the earliest one, only preceded by RCA Studio II version.

Two playing modes are available: Normal and Split. In the Split Game, each frame starts with some combination of less than 10 pins. You have two balls to knock down the remaining pins. You can play with a friend or alone.

How the game work? The ball starts to roll down from the sides of the lane to the bottom of the playfield. Then, it is moving to-and-fro in front of the lane waiting for player interaction. Push up to release ball, then left to start the ball curving left, or right to start the ball curving right.