[robotguy]

I tend to like games for their individual puzzles/tricks. I fondly remember the babel fish puzzle in HHGTTG, but my favorite was Leather Goddesses of Phobos. It was a bit risque (usually a draw for a teen), and the game "knew" if the player was male or female without ever asking. Took me several playthroughs to figure out how it managed to do that.