There is a special encounter in which you encounter a man in power-armor that has rusted to the point of immobility. Talking to him makes him ask for "Oil Can", which you can pick up and use on him.

If you help him, he'll thank you by giving you 150 Micro-fusion Cells, then go on his way.

This is a reference to the Tin Man from The Wizard of Oz.

There is a special encounter in which you encounter a Bridge Keeper who will only let you pass after answering three questions correctly. If you answer any of them incorrectly, you die.

This is a reference to the Bridge Keeper scene from "Monty Python and the Holy Grail."

Fallout 2 features same-sex marriage through opportunities to marry Miria or Davin, a sister and brother working at the slaughterhouse in Modoc, in a shotgun wedding regardless of the Chosen One's gender or party limit. This marriage is permanent unless Miria/Davin dies in some way, is sold to slavery, or is divorced at New Reno's Drunk Cupid Chapel in exchange for a bottle of alcohol. According to game designer Chris Avellone in 2019, nobody at Black Isle Studios working on the game was against the inclusion of same-sex marriage, and noted that "fans didn't seem to care" about it when playing the game. He believed the reason for this reception was because of it only being offered in Modoc, a tight-knit small town "where things can get wild and weird" that was more receptive to it than a more "modern" location like Vault City.