A display device (1) comprises: display units (32a, 32b) which, by displaying images by being mounted, which respectively correspond to both of a user's eyes, stereoscopically display, in a virtual entertainment region within a display space which is divided into a three-dimensional matrix, three-dimensional blocks, wherein one block or a plurality of blocks occupies each segment of the division thereof; a control unit (22) which controls the display units (32a, 32b); and a detection unit (44) which detects a location of a body within the display space. The control unit (22) controls the display units (32a, 32b) and causes the three-dimensional blocks to appear, and when a change over time of the body is detected in the display space by the detection unit (44), moves the three-dimensional blocks on a per segment basis on the basis of the result of the detection. When all of the segments in one layer of the entertainment region are filled by the moved three-dimensional blocks, the portion of the three-dimensional blocks which is included in the one layer is erased.