Very scary (the passage of time, I mean).
I remember I got this pre-ordered, and got it right at release. Incredible game.
I couldn't get 100% as a kid, never saw any of the secret levels other than Poochie Aint Stupid (which I also could never beat a kid)
Revisited the game as a young adult and fell in love with it again, this time completing it. Timeless masterpiece.