A short adventure game from 1990. You play Hugo in a quest to rescue your girlfriend from a house inhabited by monsters. Followed up by two sequels, Whodunnit? and Jungle of Doom, and the basic premise was retooled as a Wolfenstein 3D clone called Nitemare 3D in 1994.There's also a film called Hugo that has nothing to do with the games.
Arc Number: 333 is the solution to the combination lock in the first game and part of the phone number to dial in the second. Trying it on a safe later in the second game will just result in the game mocking you for thinking that would work again.
In the second game, the final bits of evidence are red herrings based on Cliches. You instead have to locate the character without the cliché motive.
Off with His Head! - If the butler from the first game approaches you while you're wearing the monster mask, he'll give you a pork chop. Let him catch you without it on, and you'll get this kind of chop instead.
Paper Key Retrieval Trick: In Hugo 2, the character you control encounter the locked door in a hallway but can't open it. It is opened in the finale, where Hugo puts the newspaper under the door and pushes the pencil through the keyhole to unlock the door, where you meet with a character in the hallway.
Schmuck Bait - When you pick up the whistle in the first game, the game asks, "I wonder what the whistle does?" But if you blow it right away and go into the next room, you get killed by the dog. However, the whistle actually does have an important, positive use in the game.
The opening theme music is a mishmash of both the "Dragnet March" and the synthesizer lick from Boz Scaggs' "Lido Shuffle."
The killer dog is accompanied by a brief clip of "(How Much Is) That Doggie in the Window?".
In the sequel Hugo's girlfriend Penelope saves The Doctor from a Dalek, confusing the hell out of a lot of stateside players who didn't get the BBC America channel (in fact, a few strategy guides treat it as a Big Lipped Alligator Moment).
Trial-and-Error Gameplay - Typically for its genre and era, experimenting with items has a very high probability of resulting in death.
Twist Ending: The murder in the second game? That was actually Hugo's uncle and cousin rehearsing a play where they play the victim and killer, respectively.
The Unseen: Penelope is only seen as a silhouette in the first game, but get's an actual sprite in the second game.