Abstract: A storage medium having stored an information processing program therein, an information processing apparatus, an information processing method, and an information processing system, which enable highly entertaining display in accordance with a user which performs an operation input, are provided. A characteristic of the face of a user currently using a game apparatus 10 is detected, and data indicating the detected characteristic is compared to already stored data indicating characteristics of the faces of users. If there is data indicating a closest characteristic, among the already stored data, the data is selected. When the data is selected, a motion of an object is set and controlled in accordance with a number of times which the data is selected.

Abstract: An image taken by a real camera is repeatedly obtained, and position and orientation information determined in accordance with a position and an orientation of a real camera in a real space is repeatedly calculated. A virtual object or a letter to be additionally displayed on the taken image is set as an additional display object, and based on a result of recognition of a sound inputted into a sound input device, at least one selected from the group consisting of a display position, an orientation, and a display form of the additional display object is set. A combined image repeatedly generated by superimposing on the taken image the set additional display object with reference to a position in the taken image in accordance with the position and orientation information is displayed on a display device.

Abstract: A storage medium having stored an information processing program therein, an information processing apparatus, an information processing method, and an information processing system, which enable highly entertaining display in accordance with a user which performs an operation input, are provided. A characteristic of the face of a user currently using a game apparatus 10 is detected, and data indicating the detected characteristic is compared to already stored data indicating characteristics of the faces of users. If there is data indicating a closest characteristic, among the already stored data, the data is selected. When the data is selected, a motion of an object is set and controlled in accordance with a number of times which the data is selected.

Abstract: An image taken by a real camera is repeatedly obtained, and position and orientation information determined in accordance with a position and an orientation of a real camera in a real space is repeatedly calculated. A virtual object or a letter to be additionally displayed on the taken image is set as an additional display object, and based on a result of recognition of a sound inputted into a sound input device, at least one selected from the group consisting of a display position, an orientation, and a display form of the additional display object is set. A combined image repeatedly generated by superimposing on the taken image the set additional display object with reference to a position in the taken image in accordance with the position and orientation information is displayed on a display device.