Walking Through Walls, also known as the Full Wall Clip, is a basic trick used in Super Mario Maker. This trick involves Mario clipping through, or spawning inside of a wall.
How It Works
There are many different ways to clip Mario into a wall such as:
Being above or below the screen when a block goes back to it's native state
Standing inside of a hidden block that gets activated
Spawning inside of a wall
If Mario crouches while inside of the wall he will no longer be able to move and will only be able to jump.
Mario is able to freely walk between most blocks, however he cannot walk through ground blocks unless he starts inside of them.
Note: This method only works on levels created before version ?
Jumping into a giant boot that is on a semi-solid directly underneath ground blocks will allow Mario to clip through it when he enters the boot.
Note: This only works on levels created before version 1.47