Support
Pinchain is a one-screen bowling game. Drag across the lane, or use the aim and power sliders, then press Roll.
Scoring
Frames 1 through 9 give you two rolls, unless the first roll clears the rack. A strike scores 10 plus the next two rolls. A spare scores 10 plus the next roll. An open frame scores only the pins you knocked down. The tenth frame adds the extra rolls a strike or spare earns. Twelve strikes is 300.
Pins
The ball follows the aim and the power you set. A pin falls when the ball hits it, or when a pin that is already falling hits it. Pins outside that chain stay standing for the next roll.