Earth Defense Force (also called Super Earth Defense Force E.D.F. in-game and Super E.D.F. in Japan) is a horizontal shooter game developed and published by Jaleco for the SNES. Originally an arcade game, it featured a two player cooperative gaming mode which was later removed during its port to the SNES. In its SNES incarnation, graphical adjustments were made to some of the game's levels, and new selectable weapons were added. [source:wikipedia]