Program, server, and method for pinball game

A method using one or more computers for providing a pinball game to a user, the method being implemented in a processor configured by machine-readable instructions, the method comprising:

• receiving selection of one or more ball objects by the user from a plurality of ball objects each having a parameter, the one or more ball objects being to be used in the pinball game;
• displaying a game screen containing a game field of the pinball game;
• injecting the selected ball objects into the game field;
• operating a ball-hitting object arranged in the game field in accordance with an instruction from the user;
• moving the injected ball objects at least in accordance with the operation of the ball-hitting object and progressing the pinball game based at least on the parameter assigned to the selected ball objects such that the progress of the pinball game is presented in the game screen;
• and
• injecting the ball objects having fallen outside the game field into the game field again;
• and
• wherein the parameter includes a level of the ball object, and the pinball game is progressed more advantageously to the user as the level of the ball object is higher.