In the game that helped to establish the first person shooter genre, players controled an American soldier who had been captured during World War II and taken to castle Wolfenstein. The objective of the game was to escape from the castle, defeating its security guards in the process.
Stopping the possible escape ranked high on the priority list of the Third Reich and when near the exit, players needed to defeat the man who many consider to be the greatest threat this world has ever seen: Adolf Hitler.
Developers figured this was not enough; however, and decided to arm Hitler with a mech suit, equipped with two machine guns.
This encounter will forever be in the memory of the FPS fans from the 90s.