Dracula9, if you need to talk about Eternal Darkness, I know a lot about the game, since I've fully played all three campaigns.
It's not a 'funny' game. The effects thrown at the player are at times, very serious, but at other times, stupidly funny and would not mind-screw the player, but rather put his/her heart at ease.
Funny effect:
-You walk into a room and your head is decapitated. However, you can still control your bleeding body. Your heads falls to the floor and is actually an in-game object, which can be picked up. Normally, when a player picks up an item it becomes a 4th wall item, hovering and slowly spinning in the air, with a description of the item below (imagine like when Link from LoZ picks up an item like the Ocarina of Time and he holds it up in the air and it floats while spinning, while you get a caption "You received the Ocarina of Time! Here's a description blurb about how to use it".
Except, y'know, you just picked up your own head. There is no description. It's bleeding, but it starts to talk while spinning while quoting Shakespeare.
Mindscrew Effect:
-You walk into a room and your head explodes. Your body falls to the floor as if you had gotten hit by a nasty invisible enemy attack (the game actually has a few instances in which there ARE invisible enemies). The screen fades to black as if it were heading toward GameOver, but instead, you walk into the room again as if nothing had happened, in a flash. Your character then says "This... isn't... really happening!"
-You walk into a room. Normally there is no door-opening animation. The character just 'loads' with the last door behind them into a room. There are door closing animations when you leave a room, however. Except when this room loads, it loads upside-down. Your character is right-side up, but the room loaded in reverse. You cannot access the exit doors because they're in the ceiling, facing downwards, and you can't reach them. After attempting to explore the room, the game 'flashes' into the correct room. You're back in the proper location. Cue the "This isn't really happening!" line.
-You're already in a room. The game works such that if there are no enemies in a room, you can always Save by pausing and going to the Save Menu. If there are enemies in the room, when you attempt to go save, the Save Game screen says something along the lines of "It's too dangerous to save!". Well, this 'effect' has a "Save Menu" that resembles the real one, except it says something like "Error saving! No Memory Card!" and if you try to save again it says "Error in memory Card! Now Formatting Card!"... followed by the flash to the room and the "This isn't really happening!" line. THIS ONE IS SO EVIL!
-Game screen goes black. Game screens has "Please Insert Eternal Darkness Disc 2". The game only has one disc. THIS ONE IS AWFUL IF YOU RENTED THE GAME.
Effects that are purely aesthetic:
-there are flies on the camera lens in the room you're in. They're moving around the display as if they were on your TV screen, OR in the corners you can see a fly's gigantic legs moving about, juuuust off-camera. A buzzing sound can be heard coming out of the speakers, but it's subtle.
-atmospheric effects are intensified: You can hear someone walking behind you even though there are no enemies in the room. The walking steps stop if you turn around.
-you hear scratching, or banging, or crying, behind the walls.
-As your sanity increases, the camera angle for the room slightly starts go go askew. When you're fully-insane, it's nearly diagonal.
-statues and busts in the game start tracking your movement.
...these are but a few.