To provide a game machine which can realize a decorative game component while enabling a game ball having entered the game component to be easily recognized visually.

The Pachinko machine 1 is provided with a warp introduction part 17 e.g. being the game component which the game ball can enter on a game board surface part 40 and is constituted to perform a game while making the game ball Ba shot out to the game board surface part 40 enter the warp introduction part 17. The Pachinko machine 1 is provided with: a half mirror having a prescribed transmissivity and a prescribed reflectance and constituting at least the front surface 17a of the warp introduction part 17; an LED 32 arranged on the side of the inner surface of the half mirror; an entered ball detection sensor 28 for detecting entering of the game ball to the warp introduction part 17; and a light-emitting control means 29 which makes the LED 32 emit light for making the side of the inner surface of the half mirror of the warp introduction part 17 transparent to be visible from outside when the sensor 28 detects entering of the game ball to the warp introduction part 17.