Java (天王鬼龍神 ジャバ, Uranian Demon Dragon God Java) is the main villain in the original Contra, and a recurring boss in the series. One of the masterminds behind the Red Falcon organization, Java appears as a large, elongated alien head without eyes and large teeth. Despite not having eyes, it can apparently perceive it's surroundings, as it will attack as soon as the player approaches it.
Despite it's fierce appearance, Java remains immobile in all it's appearances, attacking mainly by spitting small floating aliens which track the player. Java is always fought right before Gomera Mosking, meaning it's defeat is not the end of the alien menace.