Improves upon the original for a texted based adventure that everyone can enjoy.
Graphics: Zork II is the same as the Original Zork. No Graphics. If you can't play a game that doesn't have graphics, quit reading now. However, if you are a true gamer, you can use your imagination to set up the graphics for you. The text is well done and describes the surrounding areas well.
Music and Sound: Once again this is the same as the first. No sound, no nothing.
Fun: Just like reading a choose your own adventure book, except a whole lot more fun. Plenty of replay value until you beat the game with the maximum points. After that you should be able to breeze through it in a half hour or so. Which means its good for a short trip if your bored.
Overall: The second Zork improves upon the first by having a more engrossing story. I encourage everyone to at least give it a try. You can download it off of infocom's website for free.