This is a Pin2k cab recreation of a 1953 United's Chief Shuffle Alley puck bowler. Pins appear as reflections off the glass on the DMD screen on the Pin2k style cabs (see screenshot of pins).
Start button feeds a coin and starts the game, It also add additional players up to six.
Flipper buttons move the puck right and left before launching.
Press and hold the launch button to start angle and speed settings, and release the button to throw.