Episode: "” (s15e02)
Original Air Date

What a hidden gem! To the unknowing, it was just another random, fictional arcade game but gamers with thing for history will instantly recognize it. The adult-themed, Custer's Revenge came out on the Atari 2600 back in 1982 and featured a character based on General George Armstrong Custer. The object was to dodge swarms of arrows in order to get to the other side of the screen where Custer would then have sex with a naked Native American woman who was tied to a pole. 

The fact that South Park slipped this in the episode shows that their video game knowledge goes deep. Custer's Revenge was notorious in its time for stirring up controversy and protest, just like South Park. And it was that same crude, offensive humor that in Custer's Revenge wrote its entry into history. Just like South Park.