#63 Wolfenstein 3D
Wolfenstein 3D is a seminal first-person shooter that came out in 1992. The player, a captured American spy, is pitted against a horde of World War 2 Nazis inside Castle Wolfenstein. Wolfenstein 3D is credited with helping to popularize the PC as a gaming platform and pushing forward the shooter genre.
Wolfenstein 3D is divided up to into episodes, each with their own boss. The most famous of these bosses was Hitler himself. Wolfenstein 3D was so intense it was banned in Germany, and anything goes in Germany... except, apparently, games about killing Nazis.
Top 100 Video Games of All Time #63 - Wolfenstein 3D