In the world of Super Mario 64 there's a lot Impossible places
first of them a coin underground, was discover in 2002 (along with the snowman level secret coin) in the Game FAQ's
18 years later only a few persons managed to grab it, is very hard to get it, even using the "swimming in the mountain" glitch
Read more: http://www.sm64.com/impossiblecoin.html
Player pannenkoek2012—who was the player that finally nabbed the "impossible coin" in Super Mario 64: https://www.youtube.com/watch?v=1iwAbEXgpic



Other place in the level is a small poster on an island, It's nothing important,
reach it is hard because you cannot climb by the water
the sign Say's
"I take no responsibility whatsoever for those who get dizzy and pass out
from running around this post"

Snowman's coin
There's one coin on Snowman's Land that's placed just out of bounds. To see this coin you need to go to the thin little wooden path on the giant snowman. This coin is out of sight, so you're going to need to tilt the camera in a way that allows you to see it through the wall. If you stand in the correct spot, and tilt the camera down, you'll be able to view it. This coin may be hidden, but you can still collect it.



The Mystery Goomba

In Super Mario 64 the  groups of Goombas loads  in a triangle formation. This is a constant: when you see three Goombas in a level, the game spawned them in a triangle formation,Player pannenkoek2012 who was the player that finally nabbed the "impossible coin". noticed that while this axiom held true for all levels, it wasn't true for the final Bowser level in the game, Bowser in the Sky. For whatever reason, one of the platforms on this level would spawn what was clearly a triangle-formation Goomba group...except one of the Goombas was missing, then the mystery Goomba born. So pannenkoek2012 looked into the mystery Goomba more and, using some hacks, was able to find where on the map it actually spawned. It was no wonder that nobody could find it at first. Turns out, the game spawns the third Goomba on the bottom of the map

Dark sword Z : ok I want to know why the makers did this?????? Any answers? No? I thought so

blubblub9 : I'm pretty sure that they were lazy and didn't bother removing those coins or the mystery Goomba, or they couldn't remove them or fix their positions.

PacmanandMariofan : I can get that and I like your layout

Dark sword Z :

This is actually pretty cool! Thanks for showing it, I love stuff like this!