... Do I have to say anything. Just watch at the top right Corner while watching the Video

EDIT: The Video even says you got Pranked, or wait, did you prank us?

This was probably just a troll

this is just a troll, we all know in SM64 community that consecutives Long Jumping Forward in stairs do not give enough speed to clip through doors, walls ...

Yup, Mario has a forward speed cap

on long jumps anyway