Blast Through

Blast Through is a glitch discovered by Runer5h. It involves hitting a character at such high speeds at a non-destructible wall that they go straight through. It only works with two or three attacks, at 999% damage, and has only been confirmed to work at one custom stage.

How To Perform
You must download a certain stage to do this; the stage will be uploaded shortly. If performed correctly, the CPU should fly straight through the left wall to their death, instead of bouncing off.
 * 1) Download this stage: (Coming Soon).
 * 2) Go into training mode, and select either Ganondorf or Marth.
 * 3) Go to the stage and KO the opponent once; when they reappear, they should on top of the structure in the middle of the bottom floor.
 * 4) Set opponent to 999%.
 * 5) As Marth:
 * 6) Go to the menu and set speed to 1.5x.
 * 7) Grab a Smash Ball, move to the right of the CPU, and use Critical Hit, knocking the opponent to the left.
 * 8) As Ganondorf:
 * 9) Go to the right of the CPU.
 * 10) Use a Reverse Warlock Punch. Alternatively, set speed to 1.5x, and use a normal Warlock Punch.

Why it Works
A tentative theory for why this glitch happens is that the incredible launch speed temporarily messes up the game's physics. This is supported by the fact that the normal Warlock Punch only works at 1.5x speed, while no attacks work at, for instance, 1/4x speed.