I heartily recommend the
GURPS Horror supplement for its humor.
Huh? I know what you're saying, but the actual material inside is written in a
very funny style, and there's lots of smiles to be had with a quick perusal (though actual gameplay is, presumably, more, uh, horrifying. That's NOT a comment on game quality, mind you

). Seriously, there's some great moments, including a section on weapons used by psycho killer (q'est que c'est) enemies (golf club damage, for instance, varies depending on whether the pscyho killer is using a putter or a driver; plus there's the ever popular post-hole digger and fondue fork weaponry), as well as what happens when a random character decides to wander through a graveyard at night. In the fog. Without a flashlight. Alone.
Anyway, I'm probably not explaining it very well, but it's funny stuff.
For board games, I heartily recommend
The Awful Green Things from Outer Space!
One of the all-time great fun board games, and the artwork was terrific. The adventures of the crew of the interplanetary ship
Znutar and their desperate battle against, well, the awful green things from outer space!

You had to wander around the ship finding various things to use as weapons and try them out against the ever-multiplying green things. The effects of a weapon could be awesome, or terrible, depending on the draw of a chit. And it came with a comic strip built-into the rule book! Great stuff!
Bartender! Another cannister of Zgwartz! No ice!
Warrior Poet