Floor glitch

The floor glitch is a glitch in Super Smash Bros. Brawl that allows, , or  to become stuck inside or pass directly through blocks on a custom stage.

Stage

 * Any custom stage with a soft platform directly below a regular block or ice block will work.

Execution and result
The player must use Drill Rush, Shuttle Loop, Flying Slam, Dolphin Slash or Aether under the previously mentioned block formation. The character will then be stuck inside the block. This glitch can be used to become virtually invincible by using the said move at a set distance that will make the move's ascension come to a stop inside the blocks. Bombs, however, with high damage can let you get launched into the air and you need to try the glitch again.

Explanation
The special moves of the four characters have the ability to make the character ascend high and fast enough. Since they’re ascending at quick speeds or high altitudes, frame by frame, the game tracks their next position above the soft platform, thus the glitch occurring. Meta Knight, Bowser, Marth, and Ike must use their special moves at the fastest speed when reaching the soft platform.