The first Addams family video game ever made, which oddly was based around Fester fighting aliens with a blunderbuss. It was also notorious for being extremely difficult, since enemies have absurd amounts of health and dying once puts you back at the very start.
Played on the European version, which drastically lowers enemy health and lets your bullets go through walls, making it much easier to complete.
Watch Slacker Sunday: Fester's Quest from spoonshiro on www.twitch.tv