To enable change of the number of effective lines on which a pattern of a variable display means can be stopped and displayed in relation to the number of prize winning balls, in a game machine, a program for the machine and a recording medium.

A game machine 10 has a game ball shooting means 90, a game region 100, a prize winning mouth, for example, a first prize winning mouth 120, a prize winning ball detecting means, for example, a first prize winning ball detecting means 121, a variable display means 110, a game state transition means 170, and a game control means 200. The game control means 200 has a storing means 320 of the number of prize winning balls and a changing means 330 of the number of effective lines. The storing means 320 stores the number of prize winning of the game balls, and the changing means 330 can change the number of effective lines based on the number of prize winning balls which is stored in the storing means 320.