Patent ID: 8231468

Claim:
A game device comprising: an image processor that generates a simulated game field in which a character moves, the game field having simulated obstacles that the character can surmount by combining with other characters to form a single combined character or by dividing to form a plurality of characters; an artificial intelligence unit which controls an action of the character; a user interface which receives an operation input for tilting the game field including the ground on which the character is placed; a slope controller which controls the slope of the ground based upon the operation input that the user interface has received; a character controller which moves the character based upon the inclination of the ground controlled by the slope controller; and a combination and division controller which, when there are a plurality of the characters, controls the combination and division of the characters; wherein the character controller includes: an independent mode controller which controls the character so that the character performs an action determined by the artificial intelligence unit, when the inclination of the ground is smaller than a predetermined value; and a dependent mode controller which controls the character so that the character rolls on the ground, when the inclination of the ground is greater than or equal to the predetermined value; wherein the simulated game field includes terrain having differences in elevation and wherein the character is lead to a certain goal point in the game field by tilting the ground on which the character is placed; wherein the simulated game field defines a hole therein such that: (i) if the character has at least a certain weight, the character can pass through the hole in the simulated game field, and (ii) if the character has less than the certain weight, the character cannot pass through the hole in the simulated game field.