An operation input reception unit (201) receives an operation input for a virtual vehicle to be run on the running path. Further, a running condition managing unit (203) manages the running condition of the virtual vehicle based on the received operation input. Then, a video generation unit (204) generates a front image appearing in front of the virtual vehicle, based on image information stored in an image information storage unit (202) and the managed running condition. Meanwhile, a load calculation unit (205) calculates a load to be imposed on the virtual vehicle, based on the managed running condition. Further, a tire drawing unit (206) draws a tire image whose shape is changed according to the calculated load. Then, a display control unit (208) synthesizes the generated front image and the tire image, and displays the synthesized image.