I like one of the secret areas in Gauntlet Legends. It's an accurate representation of the developer studios, with all of the team members as skeletons dead at their desks. There's also a hidden room there which houses the company mascot, a little hamster. The hamster comes straight for you and starts beating the crap out of you, knocking you down. (For those who've played, it's a radically skinned Golem.)