in 1982, hudson developed "buried bucks" (stylized as "buried buck$"), an action game sold commercially by the magazine under the name analog software. "buried bucks" was licensed to imagic who re-released it in 1984 as "chopper hunt". in "analog computing" issue 8, hudson presented a program called "graphic violence!" which creates visuals similar to the expanding explosions in atari's 1980 "missile command" arcade game. that effect is used in both "buried bucks" and "planetary defense".