1. A gaming machine for executing craps, comprising: a display device; an input device; a memory; and a processor, wherein the memory stores betting image data to display a betting image for receiving one or more bets with respect to a plurality of bet types, description button image data to display description buttons for receiving requests for displaying respective descriptions of the bet types, description information data to display respective descriptions of the bet types, and numeral data to display images of eleven numerals consisting of 2 to 12; wherein the input device is disposed at a front surface of the display device and comprises a position input device detecting a touched position by a player and outputting a detection signal representing the touched position; and wherein the processor is programmed to execute processing of: (A) along with displaying the betting image that comprises abbreviations of the bet types on a first region of the display device, based upon the betting image data stored in the memory, displaying the description buttons respectively corresponding to one of the bet types on the display device based upon the description button image data stored in the memory and the images of eleven numerals consisting of 2 to 12 on the display based upon the numeral data stored in the memory; (B) after receiving a detection signal, from the position input device, representing a touched position corresponding to one of the abbreviations of the bet types comprised in the betting image displayed in (A), deciding a casting result of two dices and awarding a win to the player according to the casting result of two dices and the bet type corresponding to the touched position; and (C) in a case where a detection signal representing a touched position corresponding to one of the description buttons displayed in (A) is received from the position input device, displaying the description of the bet types corresponding to the touched position on the display device based upon the description information data stored in the memory; (D) in a case where a detection signal representing a touched position corresponding to one of the abbreviations of the bet types comprised in the betting image displayed in (A) is received from the position input device, changing image mode of at least one of the images of the eleven numerals, which is(or are) corresponding to a sum of casting result of two dices to win in the bet type corresponding to the touched position, wherein, in (D), in a case where a detection signal representing a touched position corresponding to HARDWAYS of 4 is received from the position input device, an image of HARD is displayed on the image of 8, which is corresponding to the sum of casting result of two dices to win in HARDWAYS of 4.