Two- dimensional gaming, is a fixated viewpoint on one spot unlike the now, regularly used, Three-dimensional viewpoint.
Two- dimension gaming was the first in gaming history and one of gaming's most classic games is pac-man.
Two- dimensional gaming, such as; Sonic the Hedgehog and Zelda: A Link to the Past, which are played in Two- dimensions, were comonly played on the; Megadrive and SNES. To know it's Two- dimensional, in the comon viewpoint of the game, it has a height and a width yet no depth at all, so you can't move around in the game and look behind objects nor can objects come out at you on the screen.
Three- dimensional gaming has vastly become the most popular gaming design that is now in usage i.e. the Nintendo 64s original, The Legend of Zelda: Ocarina of Time.
Three- dimensional gaming's viewpoint however, contains the height and the width plus the depth that some games now most commonly use. The viewpoint in 3-D can be moved as you move into the game also allowing things to come out on you giving you a Three- dimensional perspective. Every console, pretty much uses the 3-D perspective now, though have also combined the three-dimensional perspective with a two-dimensional perspective i.e: Rooms, New super mario bros. Wii, etc.