Program, information storage medium, and image generation system

A program for playing a game based on an input from an operation section including a first controller and a second controller, the program causing a computer to function as: a movement operation input detection section which determines whether or not an output value from a movement sensor provided in at least one of the first controller and the second controller satisfies a detection condition for a movement operation input; a game calculation section which performs a game calculation process based on the movement operation input; an operation input display control section which performs a display control process of a movement operation input display object for displaying a detection result of the movement operation input; and an image generation section which generates a game image including the movement operation input display object.