Okay, so I was perusing the neogaf forums the other day and found a thread which contained a plethora of random video game facts and other crazy stuff. Some interesting ones:

The bushes are recoloured clouds (or vice versa).
Five of the quest dungeons in Zelda 2 spell out "Zelda".

Up until last week, for 15 years I always thought Donkey Kong Country 2 was subtitled "Diddy Kong's Quest". Well..........

Diddy's KONG-quest.
In "Dunk Hunt", you could control the ducks flight path.

And.......remember Mario Sunshine?

See it yet?

Replies
The Donkey Kong one blew my mind.
The area layout is an inverted N64 controller. I was hoping it was going to be something dirty, but no - just a controller.
Fun (possible) fact: Legend has it that Mario was named after Shigeru Miyamoto's Italian landlord at the time.
Thats why most people dont know about a lot of things