After The War is a video game in which the player controls a character through a post-apocalyptic city, probably after a nuclear war. Released and unreleased artworks by Luis Royo and Alfonso Azpiri reveals that the city should be a post-nuclear version of New York City.
Game was published in 1989 by Dinamic Software, and consisting in two separated parts, being the second one only accessible by typing a password obtained by successfully finishing the first.
Character movements were slightly different in both parts: common movements where to move left and right, to jump and to duck. While in first part the only way of fighting is using fists and legs, second part gives the character the ability of using some kind of futuristic gun. Both loads featured some parts with two levels.
Source: Wikipedia, "After the War (video game)," available under the CC-BY-SA License.